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Solidity 60.30% Python 39.70%

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brownie_fund_me's Issues

Invalid API Key

Hi, when I followed "brownie_fund_me" to verify my smart contract in Rinkeby. I got an Invalid API key error.

I have double checked all the detail in the code.
I have already set export ETHERSCAN_TOKEN=<MY_API_KEY> in .env and dotenv: .env in config file
I have already set fund_me = FundMe.deploy({"from":account},publish_source=True)
I have even checked pubilish_source() function in brownie and confirmed the URL is https://api-rinkeby.etherscan.io/api
And I also checked my API key: it was correct as it is copied directly from etherscan. I even created 2 API key, but neither of them worked.

Lesson 6: FAILED tests/test_fund_me.py::test_can_fund_and_withdraw - AttributeError: 'int' objec...

I was doing the Patrick Collins tutorial link and got this error and I got this error: FAILED tests/test_fund_me.py::test_can_fund_and_withdraw - AttributeError: 'int' objec.. when I was running brownie test
Any help is appreciated.

My files:

test_fund_me.py

from scripts.helpful_scripts import get_account
from scripts.deploy import deploy_fund_me

def test_can_fund_and_withdraw():
    account = get_account()
    fund_me = deploy_fund_me()
    entrance_fee = fund_me.getEntranceFee()
    tx = fund_me.fund({"from": account, "value": entrance_fee})
    tx.wait(1)
    assert fund_me.addressToAmountFunded(account.address) == entrance_fee
    tx2 = fund_me.withdraw({"from": account})
    tx2.wait(1)
    assert fund_me.addressToAmountFunded(account.address) == 0

fund_and_withdraw.py

from brownie import FundMe
from scripts.helpful_scripts import get_account


def fund():
    fund_me = FundMe[-1]
    account = get_account()
    entrance_fee = fund_me.getEntranceFee()
    print(entrance_fee)
    print(f"The current entry fee is {entrance_fee}")
    print("Funding")
    fund_me.fund({"from": account, "value": entrance_fee})


def withdraw():
    fund_me = FundMe[-1]
    account = get_account()
    fund_me.withdraw({"from": account})


def main():
    fund()
    withdraw()

deploy.py

from brownie import FundMe, MockV3Aggregator, network, config
from scripts.helpful_scripts import (
    get_account,
    deploy_mocks,
    LOCAL_BLOCKCHAIN_ENVIRONMENTS,
)


def deploy_fund_me():
    account = get_account()
    if network.show_active() not in LOCAL_BLOCKCHAIN_ENVIRONMENTS:
        price_feed_address = config["networks"][network.show_active()][
            "eth_usd_price_feed"
        ]
    else:
        deploy_mocks()
        price_feed_address = MockV3Aggregator[-1].address

    fund_me = FundMe.deploy(
        price_feed_address,
        {"from": account},
        publish_source=config["networks"][network.show_active()].get("verify"),
    )
    print(f"Contract deployed to {fund_me.address}")
    return fund_me


def main():
    deploy_fund_me()

helpfull_scripts.py

from brownie import network, config, accounts, MockV3Aggregator
from web3 import Web3

LOCAL_BLOCKCHAIN_ENVIRONMENTS = ["development", "ganache-local"]


DECIMALS = 8
STARTING_PRICE = 200000000


def get_account():
    if network.show_active() in LOCAL_BLOCKCHAIN_ENVIRONMENTS:
        return accounts[0]
    else:
        return accounts.add(config["wallets"]["from_key"])


def deploy_mocks():
    print(f"The active network is {network.show_active()}")
    print(f"Deploying Mocks...")
    if len(MockV3Aggregator) <= 0:
        MockV3Aggregator.deploy(
            DECIMALS, Web3.toWei(DECIMALS, STARTING_PRICE), {"from": get_account()}
        )
    print("Mocks Deployed!")

FundMe.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.6;

import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";
import "@chainlink/contracts/src/v0.6/vendor/SafeMathChainlink.sol";

contract FundMe {
    using SafeMathChainlink for uint256;

    mapping(address => uint256) public addressToAmountFunded;
    address[] public funders;
    address public owner;
    AggregatorV3Interface public priceFeed;

    constructor(address _priceFeed) public {
        priceFeed = AggregatorV3Interface(_priceFeed);
        owner = msg.sender;
    }

    function fund() public payable {
        uint256 mimimumUSD = 50 * 10**18;
        require(
            getConversionRate(msg.value) >= mimimumUSD,
            "You need to spend more ETH!"
        );
        addressToAmountFunded[msg.sender] += msg.value;
        funders.push(msg.sender);
    }

    function getVersion() public view returns (uint256) {
        return priceFeed.version();
    }

    function getPrice() public view returns (uint256) {
        (, int256 answer, , , ) = priceFeed.latestRoundData();
        return uint256(answer * 10000000000);
    }

    // 1000000000
    function getConversionRate(uint256 ethAmount)
        public
        view
        returns (uint256)
    {
        uint256 ethPrice = getPrice();
        uint256 ethAmountInUsd = (ethPrice * ethAmount) / 1000000000000000000;
        return ethAmountInUsd;
    }

    function getEntranceFee() public view returns (uint256) {
        // minimumUSD
        uint256 minimumUSD = 50 * 10**18;
        uint256 price = getPrice();
        uint256 precision = 1 * 10**18;
        // return (minimumUSD * precision) / price;
        // We fixed a rounding error found in the video by adding one!
        return ((minimumUSD * precision) / price) + 1;
    }

    modifier onlyOwner() {
        require(msg.sender == owner);
        _;
    }

    function withdraw() public payable onlyOwner {
        msg.sender.transfer(address(this).balance);

        for (
            uint256 funderIndex = 0;
            funderIndex < funders.length;
            funderIndex++
        ) {
            address funder = funders[funderIndex];
            addressToAmountFunded[funder] = 0;
        }
        funders = new address[](0);
    }
}

brownie-config.yalm

dependencies:
   # - <organization/repo>@<version>
   - smartcontractkit/[email protected]
compiler:
  solc:
    remappings:
        - '@chainlink=smartcontractkit/[email protected]'
dotenv: .env
networks:
  rinkeby:
    eth_usd_price_feed: '0x8A753747A1Fa494EC906cE90E9f37563A8AF630e'
    verify: True
  development:
    verify: False 
  ganache-local:
    verify: False
wallets:
  from_key: ${PRIVATE_KEY}

I also have .env file with export PRIVATE_KEY and export WEB3_INFURA_PROJECT_ID

Key Error

I always get the same error, and don't know why, I checked all the code, there is no error
BrownieFundMeProject is the active project.
File "C:\Users\Alex_Chen.local\pipx\venvs\eth-brownie\lib\site-packages\brownie_cli_main_.py", line 64, in main
importlib.import_module(f"brownie.cli.{cmd}").main()
File "C:\Users\Alex_Chen.local\pipx\venvs\eth-brownie\lib\site-packages\brownie_cli\run.py", line 45, in main
network.connect(CONFIG.argv["network"])
File "C:\Users\Alex_Chen.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\network\main.py", line 31, in connect
active = CONFIG.set_active_network(network)
File "C:\Users\Alex_Chen.local\pipx\venvs\eth-brownie\lib\site-packages\brownie_config.py", line 76, in set_active_network
network = copy.deepcopy(self.networks[id])
KeyError: 'ganache-local'

Brownie output says contract deployed, but not able to verify it on etherscan

I made a python program "deploy.py" to deploy a solidity "FundMe.sol" contract. from brownie import FundMe, accounts,

config from scripts.helpful_scripts import get_account
from brownie import FundMe, accounts, config
from scripts.helpful_scripts import get_account
def deploy_fund_me():
    account = accounts.add(config["wallets"]["from_key"])
    print(account)
    fund_me = FundMe.deploy({"from": account})
    print("---------Contract Deployed to ", fund_me.address)


def main():
    deploy_fund_me()

When I run the deploy.py program, I get an output which says that the contract has been deployed on the given address.


Binoy John@DESKTOP-ATPUI3D MINGW64~/Desktop/Binoy/project/BlockChain/demos/brownie_fund_me
$ brownie run deploy.py --network rinkeby
INFO: Could not find files for the given pattern(s).
Brownie v1.16.4 - Python development framework for Ethereum

BrownieFundMeProject is the active project.

Running 'scripts\deploy.py::main'...
0x9AEa174491c2ecF7920021CE4252270777810ee8
Transaction sent: 0x303eee544cab7eec134e7a56d9f85735dbb972a924466cd2610654b17ecd7ff5
  Gas price: 1.679044371 gwei   Gas limit: 397721   Nonce: 121
  FundMe.constructor confirmed   Block: 10054471   Gas used: 361565 (90.91%)
  FundMe deployed at: 0xFc4836fe3593e9b434513A48c9CBA04EE019ccC8

---------Contract Deployed to  0xFc4836fe3593e9b434513A48c9CBA04EE019ccC8

However, when I paste the contract address on the Rinkeby Etherscan website, it says "There are no matching entries" and does not show any transfer or verification of deployment of the contract.

Please let me know where have I gone wrong as I am a noob at this. Also let me know if you need any other info to help me out with this problem. Thanks in advance!!

IndexError: list index out of range

Whenever I run the above code I get an index error. Please help me out
@PatrickAlphaC
@cromewar

ValueError: execution reverted: VM Exception while processing transaction: revert Please Help

Hi please i ran into a problem while deploying Brownie Fund_and_withdraw.py script through ganache-local network already spent 3 days trying to find a quick solution. when i run brownie run scripts/deploy.py --network ganache-local. my script ran successfully but when i try interact with added Fund_and_withdraw.py script i got this error

Running 'scripts/fund_and_withdraw.py::main'...
File "brownie/_cli/run.py", line 51, in main
return_value, frame = run(
File "brownie/project/scripts.py", line 110, in run
return_value = f_locals[method_name](*args, **kwargs)
File "./scripts/fund_and_withdraw.py", line 22, in main
fund_me()
File "./scripts/fund_and_withdraw.py", line 8, in fund_me
entrance_fee = fund_me.getEntranceFee()
File "brownie/network/multicall.py", line 115, in _proxy_call
result = ContractCall.call(*args, **kwargs) # type: ignore
File "brownie/network/contract.py", line 1902, in call
return self.call(*args, block_identifier=block_identifier, override=override)
File "brownie/network/contract.py", line 1693, in call
raise VirtualMachineError(e) from None
File "brownie/exceptions.py", line 93, in init
raise ValueError(str(exc)) from None
ValueError: execution reverted: VM Exception while processing transaction: revert

I also checked ganache cli Logs here's the output :

eth_call[8:54:53 PM] > {[8:54:53 PM] > "jsonrpc": "2.0",[8:54:53 PM] > "method": "eth_call",[8:54:53 PM] > "params": [[8:54:53 PM] > {[8:54:53 PM] > "to": "0x8309ABC2528f652823Cad736d35B612fcF6aaBc6",[8:54:53 PM] > "data": "0x09bc33a7"[8:54:53 PM] > },[8:54:53 PM] > "latest"[8:54:53 PM] > ],[8:54:53 PM] > "id": 7[8:54:53 PM] > }[8:54:53 PM] < {[8:54:53 PM] < "id": 7,[8:54:53 PM] < "jsonrpc": "2.0",[8:54:53 PM] < "error": {[8:54:53 PM] < "message": "VM Exception while processing transaction: revert",[8:54:53 PM] < "code": -32000,[8:54:53 PM] < "data": {[8:54:53 PM] < "0x6656326ec950a3a1b1cfc3103cc1bfb427e74c8045c75e278525ac33a46868c4": {[8:54:53 PM] < "error": "revert",[8:54:53 PM] < "program_counter": 995,[8:54:53 PM] < "return": "0x"[8:54:53 PM] < },[8:54:53 PM] < "stack": "RuntimeError: VM Exception while processing transaction: revert\n at Function.RuntimeError.fromResults (/Applications/Ganache.app/Contents/Resources/static/node/node_modules/ganache-core/lib/utils/runtimeerror.js:94:13)\n at /Applications/Ganache.app/Contents/Resources/static/node/node_modules/ganache-core/lib/blockchain_double.js:568:26",[8:54:53 PM] < "name": "RuntimeError"[8:54:53 PM] < }

Please Any idea on how to solve this . Thanks in advance

IndexError: list index out of range

I am following the FREECODECAMP Solidity, Blockchain, and Smart Contract Course and got struck at 5:42:00. getting this error IndexError: list index out of range.
I am unable to find how it can be solved.

attaching a screenshot of the error.

TypeError: 'ContractContainer' object is not callable

Hi smart ones.....

I can deploy FundMe at rinkeby, but I am facing issues to deploy it at local ganache. The error happens at this command

    mock_aggregator = MockV3Aggregator(18, 200000000000000000000, {"from": account})

Many thanks in advance.

Lesson 6 MockV3Aggregato Error

ConnectionError: Status 404 when getting package versions from Github: 'Not Found'

While following the freecodecamp tutorial, at 5:11:04 I got this error. Please do help me out.
@PatrickAlphaC
@MeLlamoValen
@cromewar
@7xAquarius
After running brownie compile, I got this

RESULT:
INFO: Could not find files for the given pattern(s).
Brownie v1.19.1 - Python development framework for Ethereum

File "C:\Users\USER.local\pipx\venvs\eth-brownie\lib\site-packages\brownie_cli_main_.py", line 64, in main
importlib.import_module(f"brownie._cli.{cmd}").main()
File "C:\Users\USER.local\pipx\venvs\eth-brownie\lib\site-packages\brownie_cli\compile.py", line 50, in main
proj = project.load()
File "C:\Users\USER.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\project\main.py", line 780, in load
return Project(name, project_path)
File "C:\Users\USER.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\project\main.py", line 188, in init
self.load()
File "C:\Users\USER.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\project\main.py", line 257, in load
self._compile(changed, self._compiler_config, False)
File "C:\Users\USER.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\project\main.py", line 90, in _compile
_install_dependencies(self._path)
File "C:\Users\USER.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\project\main.py", line 786, in _install_dependencies
install_package(package_id)
File "C:\Users\USER.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\project\main.py", line 808, in install_package
return _install_from_github(package_id)
File "C:\Users\USER.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\project\main.py", line 871, in _install_from_github
download_url = _get_download_url_from_tag(org, repo, version, headers)
File "C:\Users\USER.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\project\main.py", line 947, in _get_download_url_from_tag\main.py", line 947, in _get_download_url_from_tag
raise ConnectionError(msg)
ConnectionError: Status 404 when getting package versions from Github: 'Not Found'

Missing or forbidden.
If this issue persists, generate a Github API token and store it as the environment variable GITHUB_TOKEN:
https://github.blog/2013-05-16-personal-api-tokens/

Test Failed

i tried running brownie test, and it failed, i have even copied the exact code from github repo, but it still failed..... the first picture below is the code, the second and third one is the error generated

Deploying ganache-local w/brownie: VM Exception while processing transaction: invalid opcode

Thanks for an amazing class Patrick. I taught myself to code 3 years ago and wish I did it 33 years ago! :)

Issue

I am going through brownie simple storage part of this course. The initial deploy,.py works properly, but I keeping getting some variation of invalid opcode and the transaction is reverting when I try to deploy to ganache-local. I am able to run the tests in this project to development/ganache-cli, but fail with ganache-local and Rinkeby.

I am experiencing the same issues as I am with my own code base. I decided to test with a clone of this repo as 'bss' and replacing .env files with my info and am experiencing the same issues. I'm on MacOS.

Steps to reproduce & Troubleshooting

brownie compile -a. Compiles successfully.

  Solc version: 0.6.12
  Optimizer: Enabled  Runs: 200
  EVM Version: Istanbul
Generating build data...
 - smartcontractkit/[email protected]/AggregatorInterface
 - smartcontractkit/[email protected]/AggregatorV2V3Interface
 - smartcontractkit/[email protected]/AggregatorV3Interface
 - smartcontractkit/[email protected]/SafeMathChainlink
 - FundMe
 - MockV3Aggregator
 Project has been compiled. Build artifacts saved at /Users/davidandrews/Documents/Projects/Web3/bss/build/contracts

Deploy ganache ui.
Execute brownie run scripts/deploy.py --network ganache-local

 ~/Documents/Projects/Web3/bss (main●●)$ brownie run scripts/deploy.py --network ganache-local 
Brownie v1.17.1 - Python development framework for Ethereum

BssProject is the active project.

Running 'scripts/deploy.py::main'...
The active network is ganache-local
Deploying Mocks...
Transaction sent: 0xe7b501480f70836256dbdd37a159100198d1422897117777e33588d1b2e1a566
  Gas price: 20.0 gwei   Gas limit: 540226   Nonce: 0
  MockV3Aggregator.constructor confirmed   Block: 1   Gas used: 491115 (90.91%)
  MockV3Aggregator deployed at: 0xF5F2B13A72901f1621d2CD9b382c1c513ac0724D

Mocks Deployed!
Transaction sent: 0xc5a26f42997e9c648ee4d12df1805746cd3ca6508c315747f9b836ce5fb39516
  Gas price: 20.0 gwei   Gas limit: 528696   Nonce: 1
  FundMe.constructor confirmed   Block: 2   Gas used: 480633 (90.91%)
  FundMe deployed at: 0xEDa314a434Ef759d85F60a54804FdfdbEB26F179

Contract deployed to 0xEDa314a434Ef759d85F60a54804FdfdbEB26F179

Execute: brownie run scripts/fund_and_withdraw.py --network ganache-local


BssProject is the active project.

Running 'scripts/fund_and_withdraw.py::main'...
25000000000000000
The current entry fee is 25000000000000000
Funding
Transaction sent: 0xffd686e74b439f0afff97ba5ab77ce31a48a66a6f2710d123b3cf37bc8b8bade
  Gas price: 20.0 gwei   Gas limit: 94207   Nonce: 2
  FundMe.fund confirmed   Block: 3   Gas used: 85643 (90.91%)

  File "brownie/_cli/run.py", line 50, in main
    return_value, frame = run(
  File "brownie/project/scripts.py", line 103, in run
    return_value = f_locals[method_name](*args, **kwargs)
  File "./scripts/fund_and_withdraw.py", line 23, in main
    withdraw()
  File "./scripts/fund_and_withdraw.py", line 18, in withdraw
    fund_me.withdraw({"from": account})
  File "brownie/network/contract.py", line 1625, in __call__
    return self.transact(*args)
  File "brownie/network/contract.py", line 1498, in transact
    return tx["from"].transfer(
  File "brownie/network/account.py", line 644, in transfer
    receipt, exc = self._make_transaction(
  File "brownie/network/account.py", line 727, in _make_transaction
    raise VirtualMachineError(e) from None
  File "brownie/exceptions.py", line 121, in __init__
    raise ValueError(str(exc)) from None
ValueError: Gas estimation failed: 'execution reverted: VM Exception while processing transaction: invalid opcode'. This transaction will likely revert. If you wish to broadcast, you must set the gas limit manually.

Add gas_limit param to fund_me.withdraw({"from": account}) -> fund_me.withdraw({"from": account, 'gas_limit': 6721975})

Brownie v1.17.1 - Python development framework for Ethereum

BssProject is the active project.

Running 'scripts/fund_and_withdraw.py::main'...
25000000000000000
The current entry fee is 25000000000000000
Funding
Transaction sent: 0x996f97219b9c8cf1dd3f88753adf4c94335d27d1784972b976c550cea5f13c6d
  Gas price: 20.0 gwei   Gas limit: 61207   Nonce: 3
  FundMe.fund confirmed   Block: 4   Gas used: 55643 (90.91%)

  File "brownie/_cli/run.py", line 50, in main
    return_value, frame = run(
  File "brownie/project/scripts.py", line 103, in run
    return_value = f_locals[method_name](*args, **kwargs)
  File "./scripts/fund_and_withdraw.py", line 24, in main
    withdraw()
  File "./scripts/fund_and_withdraw.py", line 19, in withdraw
    fund_me.withdraw({"from": account, 'gas_limit': 6721975})
  File "brownie/network/contract.py", line 1625, in __call__
    return self.transact(*args)
  File "brownie/network/contract.py", line 1498, in transact
    return tx["from"].transfer(
  File "brownie/network/account.py", line 644, in transfer
    receipt, exc = self._make_transaction(
  File "brownie/network/account.py", line 752, in _make_transaction
    exc = VirtualMachineError(e)
  File "brownie/exceptions.py", line 121, in __init__
    raise ValueError(str(exc)) from None
ValueError: Execution reverted during call: 'execution reverted: VM Exception while processing transaction: invalid opcode'. This transaction will likely revert. If you wish to broadcast, include `allow_revert:True` as a transaction parameter.

I've also tried deleting build artifacts & redeploying ganache ui.

Environment

Brownie v.1.17.1
Ganache CLI v6.12.2 (ganache-core: 2.13.2)
Node v16.8.0
Npm v7.21.0
Truffle v5.0.22

The only part of the code that has been changed from the repo is adding the gas_limit. Still happy to share the code if request. For the life of me, I can't figure what invalid opcode is causing this to revert . . . Any help would be greatly appreciated!

Thanks in advance!
@GratefulDave

TypeError: Interfaces cannot inherit. interface AggregatorV2V3Interface is AggregatorInterface, AggregatorV3Interface

I keep getting this error when i try to compile. I tried shifting versions, but to no use. Please help thanks

Please Help ValueError: execution reverted: VM Exception while processing transaction: revert unable to run Fund_and_withdraw.py script #1560

No response from the main repo issue #1560 I've seen some other people running into this but their fixes did not work for me.

Running 'scripts/fund_and_withdraw.py::main'...
File "brownie/_cli/run.py", line 51, in main
return_value, frame = run(
File "brownie/project/scripts.py", line 110, in run
return_value = f_locals[method_name](*args, **kwargs)
File "./scripts/fund_and_withdraw.py", line 22, in main
fund_me()
File "./scripts/fund_and_withdraw.py", line 8, in fund_me
entrance_fee = fund_me.getEntranceFee()
File "brownie/network/multicall.py", line 115, in _proxy_call
result = ContractCall.call(*args, **kwargs) # type: ignore
File "brownie/network/contract.py", line 1902, in call
return self.call(*args, block_identifier=block_identifier, override=override)
File "brownie/network/contract.py", line 1693, in call
raise VirtualMachineError(e) from None
File "brownie/exceptions.py", line 93, in init
raise ValueError(str(exc)) from None
ValueError: execution reverted: VM Exception while processing transaction: revert

I also checked ganache cli Logs here's the output :

Please Any idea on how to solve this . Thanks in advance

Lesson 6: ValueError: execution reverted: VM Exception while processing transaction: revert

I am getting this error when attempting to run
brownie run scripts/fund_and_withdraw.py --network ganache-local

based on this response on ethereum.stackexchange it seems like the issue is with the price returned by the MockV3Aggregator making the getPrice() function return a value less than 1. StackExchange link

Is there a way to alter either the getPrice() function to include an "if < 0 return 1" or the MockV3Aggregator code?

ValueError: sender doesn't have enough funds to send tx. The upfront cost is: 9475020000000000 and the sender's account only has: 0

Hi, can anyone help me, I'm stuck in this part of Deploying the Contract FundMe. I have followed every steps but I can't seem to figure why I'm still getting this insufficient funds error....

Any ideas? Thank you...

ImportError: cannot import name 'deploy_mocks' from 'scripts.helpful_scripts'

TypeError: 'NoneType' object is not subscriptable

Here it my deploy.py file :
helpful_scripts.py file :
brownie-config.yaml :
And the problem here -

Unable to Compile With MockV3Aggregator after changing chainlink-brownie-contracts version to 0.2.2

Hello everybody! I'm having a little trouble compiling MockV3Aggregator.sol file. I changed the chainlink-brownie-contracts version to 0.2.2, as it is recommended in this issue, but it still does not work.
Any other suggestion, will be grate.

The error is the following:

`Brownie v1.17.2 - Python development framework for Ethereum

New compatible solc version available: 0.6.0
Compiling contracts...
Solc version: 0.6.0
Optimizer: Enabled Runs: 200
EVM Version: Istanbul
CompilerError: solc returned the following errors:

/home/username/.brownie/packages/smartcontractkit/[email protected]/contracts/src/v0.6/interfaces/AggregatorV2V3Interface.sol:7:38: TypeError: Interfaces cannot inherit.
interface AggregatorV2V3Interface is AggregatorInterface, AggregatorV3Interface
^-----------------^

/home/username/.brownie/packages/smartcontractkit/[email protected]/contracts/src/v0.6/interfaces/AggregatorV2V3Interface.sol:7:59: TypeError: Interfaces cannot inherit.
interface AggregatorV2V3Interface is AggregatorInterface, AggregatorV3Interface
^-------------------^`

Also, I'm changing the version in the config file, both in the "dependencies" and "remapping" sections. I don't know if maybe I'm changing this in the wrong section?

Thanks in advance!

Unable to fetch the AggregatorV3

ParserError: Source "C:/Users/lenovo/.brownie/packages/smartcontractkit/[email protected]/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol" not found: File not found.
--> contracts/fundme.sol:3:1:
|
3 | import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Have the same code as Patrick, in fundme.sol and brownie-config.yaml

KeyError: 'ganache-local'

when i am running this command brownie run scripts/deploy.py --network ganache-local it always throw an error like {
KeyError: 'ganache-local'
}

Issue with compiler version at around 5:11:00 in the video

pragma solidity 0.6.6;

import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";

import "@chainlink/contracts/src/v0.6/vendor/SafeMathChainlink.sol";

No matter what I do, it either shows up as the compiler version being wrong (telling me it needs a different compiler version different to what I have set in the settings.json) or the two links are underlined in red and give me a "not found: file callback not supported" error. I fix one, the other gives me an error. Endlessly.

I've tried changing local and global compiler versions for everything.

I've tried every single solution I've found via googling it,
not working.

What am I doing wrong here? Or is one of these links broken...

brownie.exceptions.VirtualMachineError: revert in test_fund_me.py

I'm experiencing the above error even though I have added the code to handle the occurrence of such an error.

from scripts.helpful_scripts import get_account, LOCAL_BLOCKCHAIN_ENVIRONMENTS
from scripts.deploy import deploy_fund_me
from brownie import network, accounts, exceptions
import pytest


def test_can_fund_and_withdraw():
    account = get_account()
    fund_me = deploy_fund_me()
    entrance_fee = fund_me.getEntranceFee() + 100
    tx = fund_me.fund({"from": account, "value": entrance_fee})
    tx.wait(1)
    assert fund_me.addressToAmountFunded(account.address) == entrance_fee
    tx2 = fund_me.withdraw({"from": account})
    tx2.wait(1)
    assert fund_me.addressToAmountFunded(account.address) == 0


def test_only_owner_can_witdraw():
    if network.show_active() not in LOCAL_BLOCKCHAIN_ENVIRONMENTS:
        pytest.skip("only for local testing")
    fund_me = deploy_fund_me()
    bad_actor = accounts.add()
    with pytest.raises(exceptions.VirtualMachineError):
        fund_me.withdraw({"from": bad_actor})

Error:
FAILED tests/test_fund_me.py::test_can_fund_and_withdraw - brownie.exceptions.VirtualMachineError: revert

Would appreciate any advice on how I can fix this.

Issue With fund_and_withdraw.py Script

** GREAT tutorial thus far !!!**

The issue seems to be centered around the getEntranceFee function and I can not figure out what the issue is. Any assistance would be greatly appreciated.

Code
https://github.com/xosemanolo/brownie_fund_me

brownie run scripts/deploy.py --network ganache-local

works well with following message:

Brownie v1.17.1 - Python development framework for Ethereum

    BrownieFundMeProject is the active project.
    
    Running 'scripts/deploy.py::main'...
    The Active Network is ganache-local
    Deploying Mocks...
    Mock Deployed!
    price feed address
    0x1f35e1a93F5bA09A21D1de57C17957404D3f427B
    Transaction sent: 0xb32c2a81f5a1547a2031afea6b82e82873050062a59a45b9c50c4d4c6928453b
      Gas price: 20.0 gwei   Gas limit: 424483   Nonce: 9
      FundMe.constructor confirmed   Block: 10   Gas used: 385894 (90.91%)
      FundMe deployed at: 0xf62EFFb0E950177b281C2D883b820050B343a81e

Contract deployed to 0xf62EFFb0E950177b281C2D883b820050B343a81e

brownie run scripts/fund_and_withdraw.py --network ganache-local

running into an issue with following message:

Brownie v1.17.1 - Python development framework for Ethereum

BrownieFundMeProject is the active project.

  Running 'scripts/fund_and_withdraw.py::main'...
  0xf62EFFb0E950177b281C2D883b820050B343a81e
  0x4e0826D612afCe0868b7025aA975C304c27A54Aa
    File "brownie/_cli/run.py", line 50, in main
      return_value, frame = run(
    File "brownie/project/scripts.py", line 103, in run
      return_value = f_locals[method_name](*args, **kwargs)
    File "./scripts/fund_and_withdraw.py", line 15, in main
      fund()
    File "./scripts/fund_and_withdraw.py", line 10, in fund
      entrance_fee = fund_me.getEntranceFee()
    File "brownie/network/multicall.py", line 115, in _proxy_call
      result = ContractCall.__call__(*args, **kwargs)  # type: ignore
    File "brownie/network/contract.py", line 1661, in __call__
      return self.call(*args, block_identifier=block_identifier)
    File "brownie/network/contract.py", line 1457, in call
      raise VirtualMachineError(e) from None
    File "brownie/exceptions.py", line 121, in __init__
      raise ValueError(str(exc)) from None
  ValueError: execution reverted: VM Exception while processing transaction: revert

Brownie fails to attached to local RPC client

Problem:I am not able to deploy my smart contract on persistent ganache

Steps to repeat:

All steps proceeding the 5:37 hour mark of the youtube video
Launch ganache local chain through GUI
Run $ brownie run scripts/deploy.py in terminal

Receive:

Launching 'ganache-cli --port 8545 --gasLimit 12000000 --accounts 10 --hardfork istanbul --mnemonic brownie'...

Running 'scripts/deploy.py::main'...
The active network is development
Deploying Mocks....
Transaction sent: 0x59f451022f09b1da1a9f9df54795e7dbdb88ac3618ec773bc17ae2a1b518ed4e
  Gas price: 0.0 gwei   Gas limit: 12000000   Nonce: 0
  MockV3Aggregator.constructor confirmed   Block: 1   Gas used: 430695 (3.59%)
  MockV3Aggregator deployed at: 0x3194cBDC3dbcd3E11a07892e7bA5c3394048Cc87

Mocks Deployed!
Transaction sent: 0x40bee6230d1f0b40935e0e86ae575da09da93e778b3d972a21b5fd1e93706b09
  Gas price: 0.0 gwei   Gas limit: 12000000   Nonce: 1
  FundMe.constructor confirmed   Block: 2   Gas used: 387021 (3.23%)
  FundMe deployed at: 0x602C71e4DAC47a042Ee7f46E0aee17F94A3bA0B6

Contract deployed to 0x602C71e4DAC47a042Ee7f46E0aee17F94A3bA0B6
Terminating local RPC client...

I've tried:

Add this code to the .yaml file per brownie webdocs instructions
development: host: http://127.0.0.1 reverting_tx_gas_limit: 6721975 test_rpc: cmd: ganache-cli port: 8545 gas_limit: 6721975 accounts: 10 evm_version: petersburg mnemonic: brownie

Unable to Compile With MockV3Aggregator

My error:
brownie compile
Brownie v1.16.4 - Python development framework for Ethereum

New compatible solc version available: 0.6.0
Compiling contracts...
Solc version: 0.6.0
Optimizer: Enabled Runs: 200
EVM Version: Istanbul
CompilerError: solc returned the following errors:

/Users/teryanarmen/.brownie/packages/smartcontractkit/[email protected]/contracts/src/v0.6/interfaces/AggregatorV2V3Interface.sol:7:38: TypeError: Interfaces cannot inherit.
interface AggregatorV2V3Interface is AggregatorInterface, AggregatorV3Interface
^-----------------^

/Users/teryanarmen/.brownie/packages/smartcontractkit/[email protected]/contracts/src/v0.6/interfaces/AggregatorV2V3Interface.sol:7:59: TypeError: Interfaces cannot inherit.
interface AggregatorV2V3Interface is AggregatorInterface, AggregatorV3Interface
^-------------------^

test_only_owner_can_withdraw() doesnt work with Ganache UI v2.5.4

This is just to inform future learners to save them time;

As title says the test functiontest_only_owner_can_withdraw() in this tutorial doesnt work in Ganache UI, and gives this error:

E           ValueError: Execution reverted during call: 'VM Exception while processing transaction: revert'. This transaction will likely revert. If you wish to broadcast, include `allow_revert:True` as a transaction parameter.

Based on the comment here Ive found out that it works with ganache-cli.

Brownie - Constructor Sequence has incorrect length, expected 1 but got 0

FreeCodeCamp VIDEO at 5:15:45

I am trying to deploy the FundMe contract on Rinkeby by running brownie run scripts/deploy.py --network rinkeby but I get following error:

Constructor Sequence has incorrect length, expected 1 but got 0
I think the problem is that I do NOT specify the initial value of the constructor when I run my deploy.py script. Is it correct? If yes, how can I fix it?

deploy.py


from brownie import FundMe
from scripts.helpful_script import get_account


def deploy_fund_me():
    account = get_account()
    fund_me = FundMe.deploy({"from": account})
    print(f"Contract deployed to {fund_me.account}")

Solidity contract

pragma solidity ^0.6.6;

import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";
import "@chainlink/contracts/src/v0.6/vendor/SafeMathChainlink.sol";

contract FundMe {
    using SafeMathChainlink for uint256;

    mapping(address => uint256) public addressToAmountFunded;
    address[] public funders;
    address public owner;
    AggregatorV3Interface public priceFeed;

    constructor(address _priceFeed) public {
        priceFeed = AggregatorV3Interface(_priceFeed);
        owner = msg.sender;
    }
    ...OTHER FUNCTIONS...
    }
}

if get_account(): File line, line 988, in times] RecursionError: maximum recursion depth exceeded

Can anyone know how to solve this?

[Duplicate] test_only_owner_can_withdraw() throws AttributeError instead of VirtualMachineError

from scripts.helpers import get_account, LOCAL_BLOCKCHAIN_ENVIRONMENTS
from scripts.deploy import deploy_fund_me
from brownie import network, accounts, exceptions
import pytest


def test_can_fund_and_withdraw():
    account = get_account()
    fund_me = deploy_fund_me()
    entrance_fee = fund_me.getEntranceFee() + 100
    tx = fund_me.fund({"from": account, "value": entrance_fee})
    tx.wait(1)
    assert fund_me.addressToAmountFunded(account.address) == entrance_fee
    tx2 = fund_me.withdraw({"from": account})
    tx2.wait(1)
    assert fund_me.addressToAmountFunded(account.address) == 0


def test_only_owner_can_withdraw():
    if network.show_active() not in LOCAL_BLOCKCHAIN_ENVIRONMENTS:
        pytest.skip("only for local testing")
    # account = get_account()
    fund_me = deploy_fund_me()
    bad_actor = accounts.add()
    fund_me.withdraw({"from": bad_actor})
    # with pytest.raises(exceptions.VirtualMachineError):
    #     fund_me.withdraw({"from": bad_actor})

brownie test -k test_only_owner_can_withdraw

INFO: Could not find files for the given pattern(s).
Brownie v1.17.2 - Python development framework for Ethereum

=============================== test session starts ================================
platform win32 -- Python 3.8.8, pytest-6.2.5, py-1.11.0, pluggy-1.0.0
rootdir: D:\College + Study\Courses\Solidity, Blockchain and Smart Contracts\brownie\fund_me
plugins: eth-brownie-1.17.2, hypothesis-6.27.3, forked-1.3.0, xdist-1.34.0, web3-5.25.0
collected 2 items / 1 deselected / 1 selected

Launching 'ganache-cli.cmd --accounts 10 --hardfork istanbul --gasLimit 12000000 --mnemonic brownie --port 8545'...

tests\test_fund_me.py F                                                       [100%]

===================================== FAILURES ===================================== 
___________________________ test_only_owner_can_withdraw ___________________________ 

    def test_only_owner_can_withdraw():
        if network.show_active() not in LOCAL_BLOCKCHAIN_ENVIRONMENTS:
            pytest.skip("only for local testing")
        # account = get_account()
        fund_me = deploy_fund_me()
        bad_actor = accounts.add()
>       fund_me.withdraw({"from": bad_actor})

tests\test_fund_me.py:25:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  
C:\Users\soodr\.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\network\contract.py:1629: in __call__
    return self.transact(*args)
C:\Users\soodr\.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\network\contract.py:1502: in transact
    return tx["from"].transfer(
C:\Users\soodr\.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\network\account.py:682: in transfer
    receipt._raise_if_reverted(exc)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  

self = <Transaction '0x7dbae07c4cd6854eba8d10cb92440ce5d50c3b53be61e25927dc512ad17613ea'>
exc = None

    def _raise_if_reverted(self, exc: Any) -> None:
        if self.status or CONFIG.mode == "console":
            return
        if not web3.supports_traces:
            # if traces are not available, do not attempt to determine the revert reason
            raise exc or ValueError("Execution reverted")

        if self._dev_revert_msg is None:
            # no revert message and unable to check dev string - have to get trace   
            self._expand_trace()
        if self.contract_address:
            source = ""
        elif CONFIG.argv["revert"]:
            source = self._traceback_string()
        else:
            source = self._error_string(1)
            contract = state._find_contract(self.receiver)
            if contract:
                marker = "//" if contract._build["language"] == "Solidity" else "#"  
                line = self._traceback_string().split("\n")[-1]
                if marker + " dev: " in line:
                    self._dev_revert_msg = line[line.index(marker) + len(marker) : -5].strip()

>       raise exc._with_attr(
            source=source, revert_msg=self._revert_msg, dev_revert_msg=self._dev_revert_msg
        )
E       AttributeError: 'NoneType' object has no attribute '_with_attr'

C:\Users\soodr\.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\network\transaction.py:446: AttributeError
------------------------------- Captured stdout call -------------------------------
The acitve network is development
Deploying mocks...
Mocks deployed
Contract deployed to 0x602C71e4DAC47a042Ee7f46E0aee17F94A3bA0B6
mnemonic: 'fortune shrug mass west priority reopen document private enemy spike loop depth'
============================= short test summary info ============================== 
FAILED tests/test_fund_me.py::test_only_owner_can_withdraw - AttributeError: 'None...
========================= 1 failed, 1 deselected in 7.16s ========================== 
Terminating local RPC client...

TypeError: argument of type 'NoneType' is not iterable

I ran brownie run scripts/deploy.py and received this error and I am unsure of what to do about it. Anyone have any suggestions ?

Testing errors

first of all thanks you @PatrickAlphaC I am learning sooo much from your course, I can say ha this is course is a game changer for me. I changed my mindset and many things in my life.......Keep it up. God bless you..

while testing in lesson 6 there are some errors showing I am quite new to blockchain please can you take a look at it
I don't understand where i am doing this wrong.

account not accessible through brownie accounts while using --network ganache-local

(eth-brownie) PS C:\Users\lucky\Desktop\Investing\Courses\Solidity\demos\brownie_fund_me> brownie run scripts/deploy.py --network ganache-local
INFO: Could not find files for the given pattern(s).
Brownie v1.18.1 - Python development framework for Ethereum

BrownieFundMeProject is the active project.

Running '\Users\lucky\Desktop\Investing\Courses\Solidity\demos\brownie_fund_me\scripts\deploy.py::main'...
File "C:\Users\lucky.local\pipx\venvs\eth-brownie\lib\site-packages\brownie_cli\run.py", line 51, in main
return_value, frame = run(
File "C:\Users\lucky.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\project\scripts.py", line 103, in run
return_value = f_locals[method_name](*args, **kwargs)
File "\Users\lucky\Desktop\Investing\Courses\Solidity\demos\brownie_fund_me\scripts\deploy.py", line 31, in main
deploy_fund_me()
File "\Users\lucky\Desktop\Investing\Courses\Solidity\demos\brownie_fund_me\scripts\deploy.py", line 10, in deploy_fund_me
account = get_account()
File ".\scripts\helpful_scripts.py", line 12, in get_account
return accounts[0]
File "C:\Users\lucky.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\network\account.py", line 115, in getitem
return self._accounts[key]
IndexError: list index out of range

I can run the chain locally and on the rinkeby testnet, but when I run it using --network ganache-local, it is throwing this error. I think it is not able to get the account address.

Error in brownie test

As explained by Patrick, we need to close the Ganache-UI before writing brownie test in the terminal.
So did I keeping everything same.....and got a massive error for some reason where the main error message was:
ValueError: sender doesn't have enough funds to send tx. The upfront cost is: 25000000000000000 and the sender's account only has: 0

Error screen part 1:

Error screen part 2:

My test_fund_me.py code (until now) looks like this:

from scripts.helpful_scripts import get_account
from scripts.deploy import deploy_fund_me
import pytest


def test_fund_and_withdraw():
    account = get_account()
    fund_me = deploy_fund_me()
    entrance_fee = fund_me.getEntranceFee()
    tx1 = fund_me.fund({"from": account, "value": entrance_fee})
    tx1.wait(1)
    assert fund_me.addressToAmountFunded(account.address) == entrance_fee
    tx2 = fund_me.withdraw({"from": account})
    tx2.wait(1)
    assert fund_me.addressToAmountFunded(account.address) == 0

I'm a complete newbie in this field and thus have very limited knowledge about it.

Thanks in advance

test_only_owner_can_withdraw throws AttributeError instead of expected VM exception

Great lesson.
I'm testing with a clone of your repo.

I ran brownie test -k test_only_owner_can_withdraw --network development and saw an unexpected error:

> tx = fund_me.withdraw({"from": bad_actor})
E AttributeError: 'NoneType' object has no attribute '_with_attr'

Brownie v1.17.1 - Python development framework for Ethereum
platform darwin -- Python 3.9.8, pytest-6.2.5, py-1.10.0

[Duplicated] Brownie - Constructor Sequence has incorrect length, expected 1 but got 0

FreeCodeCamp VIDEO at 5:15:45

I am trying to deploy the FundMe contract on Rinkeby by running brownie run scripts/deploy.py --network rinkeby but I get following error:

deploy.py


from brownie import FundMe
from scripts.helpful_script import get_account


def deploy_fund_me():
    account = get_account()
    fund_me = FundMe.deploy({"from": account})
    print(f"Contract deployed to {fund_me.account}")

Solidity contract

pragma solidity ^0.6.6;

import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";
import "@chainlink/contracts/src/v0.6/vendor/SafeMathChainlink.sol";

contract FundMe {
    using SafeMathChainlink for uint256;

    mapping(address => uint256) public addressToAmountFunded;
    address[] public funders;
    address public owner;
    AggregatorV3Interface public priceFeed;

    constructor(address _priceFeed) public {
        priceFeed = AggregatorV3Interface(_priceFeed);
        owner = msg.sender;
    }
    ...OTHER FUNCTIONS...
    }
}

ConnectionError: HTTPConnectionPool(host='0.0.0.0', port=7545)

Hi,there:
At youtube freedcodecamp 5:41:17 ,when tried to deploy to ganache-local,pop out these error information

ConnectionError: HTTPConnectionPool(host='0.0.0.0', port=7545): Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fd62639d700>: Failed to establish a new connection: [Errno 61] Connection refused'))

full information as:

BronieFundMe2022Project is the active project.

Running 'scripts/deploy.py::main'...
The active network is ganache-local
Deploying Mocks....
  File "brownie/_cli/run.py", line 50, in main
    return_value, frame = run(
  File "brownie/project/scripts.py", line 103, in run
    return_value = f_locals[method_name](*args, **kwargs)
  File "./scripts/deploy.py", line 27, in main
    deploy_fund_me()
  File "./scripts/deploy.py", line 16, in deploy_fund_me
    deploy_mocks()
  File "./scripts/helpful_scripts.py", line 20, in deploy_mocks
    MockV3Aggregator.deploy(DECIMALS,Web3.toWei(STARTING_PRICE,"ether"),{"from":get_account()})
  File "brownie/network/contract.py", line 528, in __call__
    return tx["from"].deploy(
  File "brownie/network/account.py", line 510, in deploy
    receipt, exc = self._make_transaction(
  File "brownie/network/account.py", line 720, in _make_transaction
    gas_price, gas_strategy, gas_iter = self._gas_price(gas_price)
  File "brownie/network/account.py", line 456, in _gas_price
    return web3.eth.generate_gas_price(), None, None
  File "web3/eth.py", line 877, in generate_gas_price
    return self._generate_gas_price(transaction_params)
  File "web3/eth.py", line 173, in _generate_gas_price
    return self.gasPriceStrategy(self.web3, transaction_params)
  File "web3/gas_strategies/rpc.py", line 20, in rpc_gas_price_strategy
    return web3.manager.request_blocking(RPC.eth_gasPrice, [])
  File "web3/manager.py", line 197, in request_blocking
    response = self._make_request(method, params)
  File "web3/manager.py", line 150, in _make_request
    return request_func(method, params)
  File "cytoolz/functoolz.pyx", line 250, in cytoolz.functoolz.curry.__call__
  File "web3/middleware/formatting.py", line 76, in apply_formatters
    response = make_request(method, params)
  File "web3/middleware/gas_price_strategy.py", line 90, in middleware
    return make_request(method, params)
  File "cytoolz/functoolz.pyx", line 250, in cytoolz.functoolz.curry.__call__
  File "web3/middleware/formatting.py", line 76, in apply_formatters
    response = make_request(method, params)
  File "web3/middleware/attrdict.py", line 33, in middleware
    response = make_request(method, params)
  File "cytoolz/functoolz.pyx", line 250, in cytoolz.functoolz.curry.__call__
  File "web3/middleware/formatting.py", line 76, in apply_formatters
    response = make_request(method, params)
  File "cytoolz/functoolz.pyx", line 250, in cytoolz.functoolz.curry.__call__
  File "web3/middleware/formatting.py", line 76, in apply_formatters
    response = make_request(method, params)
  File "cytoolz/functoolz.pyx", line 250, in cytoolz.functoolz.curry.__call__
  File "web3/middleware/formatting.py", line 76, in apply_formatters
    response = make_request(method, params)
  File "web3/middleware/buffered_gas_estimate.py", line 40, in middleware
    return make_request(method, params)
  File "web3/middleware/exception_retry_request.py", line 105, in middleware
    return make_request(method, params)
  File "web3/providers/rpc.py", line 88, in make_request
    raw_response = make_post_request(
  File "web3/_utils/request.py", line 48, in make_post_request
    response = session.post(endpoint_uri, data=data, *args, **kwargs)  # type: ignore
  File "requests/sessions.py", line 590, in post
    return self.request('POST', url, data=data, json=json, **kwargs)
  File "requests/sessions.py", line 542, in request
    resp = self.send(prep, **send_kwargs)
  File "requests/sessions.py", line 655, in send
    r = adapter.send(request, **kwargs)
  File "requests/adapters.py", line 516, in send
    raise ConnectionError(e, request=request)
ConnectionError: HTTPConnectionPool(host='0.0.0.0', port=7545): Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fd62639d700>: Failed to establish a new connection: [Errno 61] Connection refused'))

from brownie import FundMe,network,config,MockV3Aggregator
from scripts.helpful_scripts import (deploy_mocks, get_account,LOCAL_BLOCKCHAIN_ENVIRONMENT)



def deploy_fund_me():
    account = get_account()
    # pass the price feed address to our fundme contract

    # if we are on a persistent network like rinkeby, use the associated address
    # otherwise, deploy mocks
    if network.show_active() not in LOCAL_BLOCKCHAIN_ENVIRONMENT:
        price_feed_address = config["network"][network_showactive()]["eth_usd_price_feed"]
    
    else:
        deploy_mocks()
        price_feed_address = MockV3Aggregator[-1].address

    fund_me = FundMe.deploy(
        price_feed_address,
        {"from":account},
        publish_source=config["networks"][network.show_active()].get("verify"),
        )
    print(f"The contract deploy to {fund_me.address}")

def main():
    deploy_fund_me()

Lesson 6: "FAILED test_fund_me.py::test_can_fun_and_withdraw

After connecting to alchemy, everything worked fine up until this error.

Went through and checked and even copy pasted my code from the files on here.

Any ideas? I know it's going to be something stupid on my end. Here's my code: from scripts.helpful_scripts import get_account, LOCAL_BLOCKCHAIN_ENVIRONMENTS
from scripts.deploy import deploy_fund_me
from brownie import network, accounts, exceptions
import pytest

def test_can_fund_and_withdraw():
account = get_account()
fund_me = deploy_fund_me()
entrance_fee = fund_me.getEntranceFee() + 100
tx = fund_me.fund({"from": account, "value": entrance_fee})
tx.wait(1)
assert fund_me.addressToAmountFunded(account.address) == entrance_fee
tx2 = fund_me.withdraw({"from": account})
tx2.wait(1)
assert fund_me.addressToAmountFunded(account.address) == 0

def test_only_owner_can_withdraw():
if network.show_active() not in LOCAL_BLOCKCHAIN_ENVIRONMENTS:
pytest.skip("only for local testing")
fund_me = deploy_fund_me()
bad_actor = accounts.add()
with pytest.raises(exceptions.VirtualMachineError):
fund_me.withdraw({"from": bad_actor})

Any and all help appreciated!

Brownie not detecting Ganache

5:37:00ish
brownie didn't detect ganache when deploying. but after changing the PORT NUMBER to 8545 and the NETWORK ID to 1337 in ganache settings, it worked.
thought i'd share this error.

constructor sequece

Running 'scripts\deploy.py::main'...
File "C:\Users\USER\AppData\Local\Programs\Python\Python310\lib\site-packages\brownie_cli\run.py", line 51, in main
return_value, frame = run(
File "C:\Users\USER\AppData\Local\Programs\Python\Python310\lib\site-packages\brownie\project\scripts.py", line 110, in run
return_value = f_locals[method_name](*args, **kwargs)
File ".\scripts\deploy.py", line 14, in main
deploy_fund_me()
File ".\scripts\deploy.py", line 8, in deploy_fund_me
fund_me = FundMe.deploy({"from": account})
File "C:\Users\USER\AppData\Local\Programs\Python\Python310\lib\site-packages\brownie\network\contract.py", line 549, in call
return tx["from"].deploy(
File "C:\Users\USER\AppData\Local\Programs\Python\Python310\lib\site-packages\brownie\network\account.py", line 509, in deploy
data = contract.deploy.encode_input(*args)
File "C:\Users\USER\AppData\Local\Programs\Python\Python310\lib\site-packages\brownie\network\contract.py", line 579, in encode_input
data = format_input(self.abi, args)
File "C:\Users\USER\AppData\Local\Programs\Python\Python310\lib\site-packages\brownie\convert\normalize.py", line 20, in format_input
raise type(e)(f"{abi['name']} {e}") from None
ValueError: constructor Sequence has incorrect length, expected 1 but got 0

CompilerError

CompilerError: solc returned the following errors:

contracts/FundMe.sol:34:1: ParserError: Function, variable, struct or modifier declaration expected.

need to set GITHUB_TOKEN in brownie but don't know how

I'm using VPN to connect to the internet (because GitHub is not accessible in my country)

when I run > brownie compile
I get

 ConnectionError: Status 404 when getting package versions from Github: 'Not Found'

Missing or forbidden.
If this issue persists, generate a Github API token and store it as the environment variable `GITHUB_TOKEN`:
https://github.blog/2013-05-16-personal-api-tokens/

I think it caused by github rejecting my connection

I've tried to set github_token in dotenv like this:

export GITHUB_TOKEN = 'ghp_00000000000000000000000000000000000000'
also
but getting the same error
also echo $GITHUB_TOKEN
[is blank]

in the brownie docs: https://eth-brownie.readthedocs.io/_/downloads/en/stable/pdf/ page 33 installing from GitHub said :

It is possible to install from a private Github repository using an API access token like a personal access token. This can be provided to Brownie via the GITHUB_TOKEN environment variable in the form of username:ghp_token_secret. See also https://docs.github.com/en/rest/overview/

but I don't know what to do in .env or brownie-config.yaml
thank you in advance

compile error

CompilerError: solc returned the following errors:

contracts/FundMe.sol:5:1: ParserError: Source "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol" not found: File outside of allowed directories.
import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";
^--------------------------------------------------------------------------^

contracts/FundMe.sol:6:1: ParserError: Source "@chainlink/contracts/src/v0.6/vendor/SafeMathChainlink.sol" not found: File outside of allowed directories.
import "@chainlink/contracts/src/v0.6/vendor/SafeMathChainlink.sol";
^------------------------------------------------------------------^

Beginning of fund_and_withdraw.py Section, Unable to come up with the same print(entrance_fee) value as in the video.

I keep coming up with 2500000 when running scripts.fund_and_withdraw.py.

I've seen some other people running into this but their fixes did not work for me.

Please let it be something bleedingly obvious wrong with me code. fingers crossed.

Here is my code:

fund_and_withdraw.py:

from brownie import FundMe
from scripts.helpful_scripts import get_account

def fund():
fund_me = FundMe[-1]
account = get_account()
entrance_fee = fund_me.getEntranceFee()
print(entrance_fee)

def main():
fund()

FundMe.sol:

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.6;

import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";
import "@chainlink/contracts/src/v0.6/vendor/SafeMathChainlink.sol";

contract FundMe {
using SafeMathChainlink for uint256;

mapping(address => uint256) public addressToAmountFunded;
address[] public funders;
address public owner;
AggregatorV3Interface public priceFeed;

// if you're following along with the freecodecamp video
// Please see https://github.com/PatrickAlphaC/fund_me
// to get the starting solidity contract code, it'll be slightly different than this!
constructor(address _priceFeed) public {
    priceFeed = AggregatorV3Interface(_priceFeed);
    owner = msg.sender;
}

function fund() public payable {
    uint256 minimumUSD = 50 * 10**18;
    require(
        getConversionRate(msg.value) >= minimumUSD,
        "You need to spend more ETH!"
    );
    addressToAmountFunded[msg.sender] += msg.value;
    funders.push(msg.sender);
}

function getVersion() public view returns (uint256) {
    return priceFeed.version();
}

function getPrice() public view returns (uint256) {
    (, int256 answer, , , ) = priceFeed.latestRoundData();
    return uint256(answer * 10000000000);
}

// 1000000000
function getConversionRate(uint256 ethAmount)
    public
    view
    returns (uint256)
{
    uint256 ethPrice = getPrice();
    uint256 ethAmountInUsd = (ethPrice * ethAmount) / 1000000000000000000;
    return ethAmountInUsd;
}

function getEntranceFee() public view returns (uint256) {
    // minimumUSD
    uint256 minimumUSD = 50 * 10**18;
    uint256 price = getPrice();
    uint256 precision = 1 * 10**18;
    return (minimumUSD * precision) / price;
}

modifier onlyOwner() {
    require(msg.sender == owner);
    _;
}

function withdraw() public payable onlyOwner {
    msg.sender.transfer(address(this).balance);

    for (
        uint256 funderIndex = 0;
        funderIndex < funders.length;
        funderIndex++
    ) {
        address funder = funders[funderIndex];
        addressToAmountFunded[funder] = 0;
    }
    funders = new address[](0);
}

}

deploy.py:

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.6;

import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";
import "@chainlink/contracts/src/v0.6/vendor/SafeMathChainlink.sol";

contract FundMe {
using SafeMathChainlink for uint256;

mapping(address => uint256) public addressToAmountFunded;
address[] public funders;
address public owner;
AggregatorV3Interface public priceFeed;

// if you're following along with the freecodecamp video
// Please see https://github.com/PatrickAlphaC/fund_me
// to get the starting solidity contract code, it'll be slightly different than this!
constructor(address _priceFeed) public {
    priceFeed = AggregatorV3Interface(_priceFeed);
    owner = msg.sender;
}

function fund() public payable {
    uint256 minimumUSD = 50 * 10**18;
    require(
        getConversionRate(msg.value) >= minimumUSD,
        "You need to spend more ETH!"
    );
    addressToAmountFunded[msg.sender] += msg.value;
    funders.push(msg.sender);
}

function getVersion() public view returns (uint256) {
    return priceFeed.version();
}

function getPrice() public view returns (uint256) {
    (, int256 answer, , , ) = priceFeed.latestRoundData();
    return uint256(answer * 10000000000);
}

// 1000000000
function getConversionRate(uint256 ethAmount)
    public
    view
    returns (uint256)
{
    uint256 ethPrice = getPrice();
    uint256 ethAmountInUsd = (ethPrice * ethAmount) / 1000000000000000000;
    return ethAmountInUsd;
}

function getEntranceFee() public view returns (uint256) {
    // minimumUSD
    uint256 minimumUSD = 50 * 10**18;
    uint256 price = getPrice();
    uint256 precision = 1 * 10**18;
    return (minimumUSD * precision) / price;
}

modifier onlyOwner() {
    require(msg.sender == owner);
    _;
}

function withdraw() public payable onlyOwner {
    msg.sender.transfer(address(this).balance);

    for (
        uint256 funderIndex = 0;
        funderIndex < funders.length;
        funderIndex++
    ) {
        address funder = funders[funderIndex];
        addressToAmountFunded[funder] = 0;
    }
    funders = new address[](0);
}

}

helpful_scripts:

from brownie import network, config, accounts, MockV3Aggregator
from web3 import Web3

DECIMALS = 8
STARTING_PRICE = 200000000000
LOCAL_BLOCKCHAIN_ENVIRONMENTS = ["development", "ganache-local"]

def get_account():
if network.show_active() in LOCAL_BLOCKCHAIN_ENVIRONMENTS:
return accounts[0]
else:
return accounts.add(config["wallets"]["from_key"])

def deploy_mocks():
print(f"The active network is {network.show_active()}")
print("Deploying Mocks")
if len(MockV3Aggregator) <= 0:
MockV3Aggregator.deploy(DECIMALS, STARTING_PRICE, {"from": get_account()})
print("Mocks Deployed!")

Any and all advice is appreciated!

however when i try to deploy on mainnet-fork-dev with this code in terminal:

brownie run scripts/deploy.py --network mainnet-fork-dev

i dont get any thing! no Error no nothing, its looks like it cant even finish the deploy all i get is this:

_Brownie v1.16.4 - Python development framework for Ethereum

BrownieFundMeProject is the active project.

Launching 'ganache-cli.cmd --accounts 10 --fork https://eth-mainnet.alchemyapi.io/v2/QRAkGZCSGKYx-n2HNjpAys6qa5BugcV9 --mnemonic brownie --port 8545 --hardfork istanbul'...
_
and i cant do anything else until i trash the teminal and start a new one!
any thoughts?!

brownie test no test ran in 0.01s

i run brownie test for tests folder but no tests ran in 0.01s, anybody know what is the problem?

(Mainnet-Fork) RPCProcessError: Unable to launch local RPC client.

brownie console --network mainnet-fork

(removed project id for infura project)

INFO: Could not find files for the given pattern(s).
Brownie v1.17.2 - Python development framework for Ethereum

FundMeProject is the active project.

Launching 'ganache-cli.cmd --accounts 10 --hardfork istanbul --fork https://mainnet.infura.io/v3/projectid --gasLimit 12000000 --mnemonic brownie --port 8545 --chainId 1'...
  File "C:\Users\soodr\.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\_cli\__main__.py", line 64, in main
    importlib.import_module(f"brownie._cli.{cmd}").main()
  File "C:\Users\soodr\.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\_cli\console.py", line 58, in main
    network.connect(CONFIG.argv["network"])
  File "C:\Users\soodr\.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\network\main.py", line 50, in connect
    rpc.launch(active["cmd"], **active["cmd_settings"])
  File "C:\Users\soodr\.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\network\rpc\__init__.py", line 93, in launch
    raise RPCProcessError(cmd, uri)
RPCProcessError: Unable to launch local RPC client.
Command: ganache-cli
URI: http://127.0.0.1:8545

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