multimc / launcher

A custom launcher for Minecraft that allows you to easily manage multiple installations of Minecraft at once

MultiMC

MultiMC is a custom launcher for Minecraft that focuses on predictability, long term stability and simplicity.

Development

If you want to contribute, talk to us on Discord first.

While blindly submitting PRs is definitely possible, they're not necessarily going to get accepted.

We aren't looking for flashy features, but expanding upon the existing feature set without disruption or endangering the future viability of the project is OK.

Building

If you want to build the launcher yourself, check BUILD.md for build instructions.

Code formatting

Just follow the existing formatting.

In general, in order of importance:

• Make sure your IDE is not messing up line endings or whitespace and avoid using linters.
• Prefer readability over dogma.
• Keep to the existing formatting.
• Indent with 4 space unless it's in a submodule.
• Keep lists (of arguments, parameters, initializers...) as lists, not paragraphs. It should either read from top to bottom, or left to right. Not both.

Translations

Translations can be done on crowdin. Please avoid making direct pull requests to the translations repository.

License

Copyright © 2013-2022 MultiMC Contributors

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this program except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Forking/Redistributing/Custom builds policy

We keep Launcher open source because we think it's important to be able to see the source code for a project like this, and we do so using the Apache license.

The license gives you access to the source MultiMC is built from, but not:

• The name, logo and other branding.
• The API tokens required to talk to services that the launcher depends on.

Because of the nature of the agreements required to interact with the Microsoft identity platform, it's impossible for us to continue allowing everyone to build the code as 'MultiMC'. The source code has been debranded and now builds as DevLauncher by default.

You must provide your own branding if you want to distribute your own builds.

You will also have to register your own app on Azure to be able to handle Microsoft account logins.

If you decide to fork the project, a mention of its origins in the About dialog and the license is acceptable. However, it should be abundantly clear that the project is a fork without implying that you have our blessing.

launcher's Issues

Cannot start instance without network connection

MultiMC5 is locking up when I try to start an instance without being online. I see a small status window with the following message, but the application does not continue. I have to use the Task Manager to End Task, despite the application still showing as Running.

"Fetching Forge version lists..."

I keep getting stuck in same place. The Play Offline button is disappearing too quickly for me to click it. If no network connection is present it should default to offline, correct?

I receive this error on v0.1.1 on win32, v0.1-rc1 on win32, v0.1.1-dev165 on win32.

Workaround: Connect to WiFi, click fast for Play Offline button, disconnect WiFi once console window opens, enjoy game. For this week that will work for me, but I don't have WiFi access most of the time.

Below is from the first error message forward in the MultiMC-1.log:

ERROR Task failed: "Yggdrasil task cancelled."
ERROR Yggdrasil task cancelled because of: 3 : "Host authserver.mojang.com not found"
INFO "Version index" started.
INFO Downloading "http://files.minecraftforge.net/minecraftforge/json"
INFO Downloading "http://files.minecraftforge.net/maven/net/minecraftforge/forge/json"
ERROR Failed "http://files.minecraftforge.net/minecraftforge/json" with reason 3
ERROR Getting forge version list failed for reasons unknown.
ERROR Part 0 failed, restarting ( QUrl( "http://files.minecraftforge.net/minecraftforge/json" ) )
ERROR "Could not open F:/minecraft/L-MultiMC5/mods/minecraftforge/list.json for writing"
ERROR Getting forge version list failed for reasons unknown.
ERROR Part 0 failed, restarting ( QUrl( "http://files.minecraftforge.net/minecraftforge/json" ) )
ERROR "Could not open F:/minecraft/L-MultiMC5/mods/minecraftforge/list.json for writing"
ERROR Getting forge version list failed for reasons unknown.
ERROR Part 0 failed, restarting ( QUrl( "http://files.minecraftforge.net/minecraftforge/json" ) )
ERROR "Could not open F:/minecraft/L-MultiMC5/mods/minecraftforge/list.json for writing"
ERROR Getting forge version list failed for reasons unknown.
ERROR Part 0 failed 3 times ( QUrl( "http://files.minecraftforge.net/minecraftforge/json" ) )
ERROR Failed "http://files.minecraftforge.net/maven/net/minecraftforge/forge/json" with reason 3
ERROR Getting forge version list failed for reasons unknown.
ERROR Part 1 failed, restarting ( QUrl( "http://files.minecraftforge.net/maven/net/minecraftforge/forge/json" ) )
ERROR "Could not open F:/minecraft/L-MultiMC5/mods/minecraftforge/json for writing"
ERROR Getting forge version list failed for reasons unknown.
ERROR Part 1 failed, restarting ( QUrl( "http://files.minecraftforge.net/maven/net/minecraftforge/forge/json" ) )
ERROR "Could not open F:/minecraft/L-MultiMC5/mods/minecraftforge/json for writing"
ERROR Getting forge version list failed for reasons unknown.
ERROR Part 1 failed, restarting ( QUrl( "http://files.minecraftforge.net/maven/net/minecraftforge/forge/json" ) )
ERROR "Could not open F:/minecraft/L-MultiMC5/mods/minecraftforge/json for writing"
ERROR Getting forge version list failed for reasons unknown.
ERROR Part 1 failed 3 times ( QUrl( "http://files.minecraftforge.net/maven/net/minecraftforge/forge/json" ) )
ERROR "Version index" failed.
INFO Reloading status.
INFO "Status JSON" started.
INFO Downloading "http://status.mojang.com/check"
ERROR Error getting URL: "http://status.mojang.com/check" Network error: 3
ERROR Part 0 failed, restarting ( QUrl( "http://status.mojang.com/check" ) )
INFO Downloading "http://status.mojang.com/check"
ERROR Error getting URL: "http://status.mojang.com/check" Network error: 3
ERROR Part 0 failed, restarting ( QUrl( "http://status.mojang.com/check" ) )
INFO Downloading "http://status.mojang.com/check"
ERROR Error getting URL: "http://status.mojang.com/check" Network error: 3
ERROR Part 0 failed, restarting ( QUrl( "http://status.mojang.com/check" ) )
INFO Downloading "http://status.mojang.com/check"
ERROR Error getting URL: "http://status.mojang.com/check" Network error: 3
ERROR Part 0 failed 3 times ( QUrl( "http://status.mojang.com/check" ) )
ERROR "Status JSON" failed.
DEBUG Failed to load status: "Failed to load status JSON."
INFO Reloading status.
INFO "Status JSON" started.
INFO Downloading "http://status.mojang.com/check"
ERROR Error getting URL: "http://status.mojang.com/check" Network error: 3
ERROR Part 0 failed, restarting ( QUrl( "http://status.mojang.com/check" ) )
INFO Downloading "http://status.mojang.com/check"
ERROR Error getting URL: "http://status.mojang.com/check" Network error: 3
ERROR Part 0 failed, restarting ( QUrl( "http://status.mojang.com/check" ) )
INFO Downloading "http://status.mojang.com/check"
ERROR Error getting URL: "http://status.mojang.com/check" Network error: 3
ERROR Part 0 failed, restarting ( QUrl( "http://status.mojang.com/check" ) )
INFO Downloading "http://status.mojang.com/check"
ERROR Error getting URL: "http://status.mojang.com/check" Network error: 3
ERROR Part 0 failed 3 times ( QUrl( "http://status.mojang.com/check" ) )
ERROR "Status JSON" failed.
DEBUG Failed to load status: "Failed to load status JSON."

Failed to download assets

Information:
[MultiMC 5] [Windows 7] [Java 7 64-bit]

I have added no mods, nothing special, just default. I try to play it and it says "Failed to download assets!" This seems to happen for any instances that are Minecraft version 1.6 and newer.

OSX Build clang error

Can't get around clang error building the latest:

[ 79%] Building CXX object mmc_updater/depends/AnyOption/CMakeFiles/anyoption.dir/anyoption.cpp.o
clang: error: invalid deployment target for -stdlib=libc++ (requires OS X 10.7 or later)
clang: error: invalid deployment target for -stdlib=libc++ (requires OS X 10.7 or later)
clang: error: invalid deployment target for -stdlib=libc++ (requires OS X 10.7 or later)
make[2]: *** [mmc_updater/depends/AnyOption/CMakeFiles/anyoption.dir/anyoption.cpp.o] Error 1
make[1]: *** [mmc_updater/depends/AnyOption/CMakeFiles/anyoption.dir/all] Error 2
make: *** [all] Error 2
mountainlion:MultiMC5 dillera$ 

I've tried this on both 10.8, and 10.9 and have got to the same error.

To get here, I had to add stdlib=libc++ the CFLAGS, to get around the thread.h issues in compiling.

    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -stdlib=libc++ -Wall")

What are people doing to build this on OSX 10.8 and 10.9?

Minecraft Forge install window isn't listing anything

When I click on install forge, the window comes up blank. I havent been able to get MCA to work?

Not Updating?

When I click "Update Now!" it goes through the update process and restarts, then when it goes back on it shows the same message again. I have tried to update about 6 times and it wont work.
Anyone else have this problem?
Does anyone know how to fix?

Help please!

This is my crash report of MultiMC. I'm playing on 1.2.5 because I waте to play with mod redpower 2 and I can't install it on higher minecraft version.

------------- MultiMC Crash Report -------------
Information:
    Date: 01-24-2014 15:41:33
    Operating System: Windows 7 (build 7601, Service Pack 1), 64-bit edition
    MultiMC Version: 4.3.0 jenkins-MultiMC4Windows-67
    Minecraft Version: 1.2.5

------------------ Mod Lists -------------------
Jar Mods: 
    OptiFine_1.2.5_HD_C6.zip
        Version: 
        Filename: OptiFine_1.2.5_HD_C6.zip


ModLoader Mods: 
    RedPowerControl-2.0pr5b1.zip
        Version: 
        Filename: RedPowerControl-2.0pr5b1.zip

    RedPowerCore-2.0pr5b1.zip
        Version: 
        Filename: RedPowerCore-2.0pr5b1.zip

    RedPowerLighting-2.0pr5b1.zip
        Version: 
        Filename: RedPowerLighting-2.0pr5b1.zip

    RedPowerLogic-2.0pr5b1.zip
        Version: 
        Filename: RedPowerLogic-2.0pr5b1.zip

    RedPowerMachine-2.0pr5b1.zip
        Version: 
        Filename: RedPowerMachine-2.0pr5b1.zip

    RedPowerWiring-2.0pr5b1.zip
        Version: 
        Filename: RedPowerWiring-2.0pr5b1.zip

    RedPowerWorld-2.0pr5b1.zip
        Version: 
        Filename: RedPowerWorld-2.0pr5b1.zip

    rei_minimap
        Version: Folder
        Filename: rei_minimap



----------------- Console Log ------------------
Instance folder is:
C:\Users\1\Desktop\13\instances\redpower\minecraft\

Instance started with command:
"D:\program files\java2\bin\java.exe"  -Xms1024m -Xmx2048m -jar MultiMCLauncher.jar  "<username>" "Offline" "MultiMC: redpower" "854x480" "Mojang"

Loading jars...
Loading URL: file:/C:/Users/1/Desktop/13/instances/redpower/minecraft/bin/minecraft.jar
Loading URL: file:/C:/Users/1/Desktop/13/instances/redpower/minecraft/bin/lwjgl.jar
Loading URL: file:/C:/Users/1/Desktop/13/instances/redpower/minecraft/bin/lwjgl_util.jar
Loading URL: file:/C:/Users/1/Desktop/13/instances/redpower/minecraft/bin/jinput.jar
Loading natives...
Fixed Minecraft Path: Field was private static java.io.File net.minecraft.client.Minecraft.aj
Launching with applet wrapper...
27 achievements
182 recipes
Setting user: <username>, Offline
LWJGL Version: 2.4.2

OptiFine_1.2.5_HD_C6
Fri Jan 24 15:41:03 MSK 2014
OS: Windows 7 (amd64) version 6.1
Java: 1.7.0_45, Oracle Corporation
VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
LWJGL: 2.4.2
OpenGL: ATI Mobility Radeon HD 5650 version 3.2.9756 Compatibility Profile Context, ATI Technologies Inc.
OpenGL Version: 3.2
OpenGL Fancy fog: Not available (GL_NV_fog_distance)
Checking for new version
Method not found: forge.ForgeHooksClient.onTextureLoadPre
setupTexture: "/title/mojang.png", id: 1
Class not present: FMLRenderAccessLibrary
Version found: C6
ModLoader 1.2.5 Initializing...
Mod Initialized: mod_ModLoaderMp 1.2.5v1
Mod Initialized: mod_MinecraftForge 3.1.2.90
Mod Initialized: mod_InvTweaks 1.41b (1.2.4)
Mod Initialized: mod_Timber 1.2.4
Mod Initialized: mod_ReiMinimap v3.0_04 [1.2.4]
Mod Initialized: mod_RedPowerControl 2.0pr5b1
Mod Initialized: mod_RedPowerCore 2.0pr5b1
Mod Initialized: mod_RedPowerLighting 2.0pr5b1
Mod Initialized: mod_RedPowerLogic 2.0pr5b1
Mod Initialized: mod_RedPowerMachine 2.0pr5b1
Mod Initialized: mod_RedPowerWiring 2.0pr5b1
Mod Initialized: mod_RedPowerWorld 2.0pr5b1
Mod Loaded: mod_ModLoaderMp 1.2.5v1
MinecraftForge v3.1.2.90 Initialized
Mod Loaded: mod_MinecraftForge 3.1.2.90
Jan 24, 2014 3:41:04 PM forge.ForgeHooks <clinit>
INFO: MinecraftForge v3.1.2.90 Initialized

Mod Loaded: mod_InvTweaks 1.41b (1.2.4)
Mod Loaded: mod_Timber 1.2.4
Mod Loaded: mod_ReiMinimap v3.0_04 [1.2.4]
Mod Loaded: mod_RedPowerControl 2.0pr5b1
Mod Loaded: mod_RedPowerCore 2.0pr5b1
Mod Loaded: mod_RedPowerLighting 2.0pr5b1
Mod Loaded: mod_RedPowerLogic 2.0pr5b1
Mod Loaded: mod_RedPowerMachine 2.0pr5b1
Mod Loaded: mod_RedPowerWiring 2.0pr5b1
Mod Loaded: mod_RedPowerWorld 2.0pr5b1
ModLoaderMP 1.0.0 Initialized
setupTexture: "/eloraam/base/base1.png", id: 8
setupTexture: "/eloraam/wiring/redpower1.png", id: 9
setupTexture: "/eloraam/control/control1.png", id: 10
setupTexture: "/eloraam/lighting/lighting1.png", id: 11
setupTexture: "/eloraam/logic/logic1.png", id: 12
setupTexture: "/eloraam/logic/logic2.png", id: 13
setupTexture: "/eloraam/logic/array1.png", id: 14
setupTexture: "/eloraam/logic/sensor1.png", id: 15
setupTexture: "/eloraam/world/world1.png", id: 16
setupTexture: "/eloraam/world/worlditems1.png", id: 17
setupTexture: "/eloraam/machine/machine1.png", id: 18
Done.
WARNING: Found unknown Windows version: Windows 7
Attempting to use default windows plug-in.
Loading: net.java.games.input.DirectAndRawInputEnvironmentPlugin
setupTexture: "/terrain.png", id: 20
TextureFX registered: bv@fff056c, texId: 20, index: 237
TextureFX registered: qa@5f72837f, texId: 20, index: 205
TextureFX registered: zp@571737cd, texId: 20, index: 14
setupTexture: "/gui/items.png", id: 21
TextureFX registered: tu@23510a7e, texId: 21, index: 54
TextureFX registered: ht@1c2d6398, texId: 21, index: 70
TextureFX registered: ael@67e59e9b, texId: 20, index: 206
TextureFX registered: gf@14100767, texId: 20, index: 238
TextureFX registered: nh@2856057b, texId: 20, index: 31
TextureFX registered: nh@2781e2ed, texId: 20, index: 47
TextureFX removed: bv@fff056c, texId: 20, index: 237
TextureFX registered: TextureHDLavaFX@72b46689, texId: 20, index: 237
TextureFX removed: qa@5f72837f, texId: 20, index: 205
TextureFX registered: TextureHDWaterFX@21b7e734, texId: 20, index: 205
TextureFX removed: zp@571737cd, texId: 20, index: 14
TextureFX registered: TextureHDPortalFX@30ac1837, texId: 20, index: 14
TextureFX removed: ael@67e59e9b, texId: 20, index: 206
TextureFX registered: TextureHDWaterFlowFX@7269dbd7, texId: 20, index: 206
TextureFX removed: gf@14100767, texId: 20, index: 238
TextureFX registered: TextureHDLavaFlowFX@3e03af0, texId: 20, index: 238
TextureFX removed: nh@2856057b, texId: 20, index: 31
TextureFX registered: TextureHDFlamesFX@763d648c, texId: 20, index: 31
TextureFX removed: nh@2781e2ed, texId: 20, index: 47
TextureFX registered: TextureHDFlamesFX@38945ff9, texId: 20, index: 47
TextureFX removed: tu@23510a7e, texId: 21, index: 54
TextureFX registered: TextureHDCompassFX@6cc18858, texId: 21, index: 54
TextureFX removed: ht@1c2d6398, texId: 21, index: 70
TextureFX registered: TextureHDWatchFX@6d7cabbb, texId: 21, index: 70
Loading custom colors: /misc/grasscolor.png
Loading custom colors: /misc/foliagecolor.png
setupTexture: "/ctm.png", id: 22
MatchingCtmPng: true
Registering default ConnectedTextures
setupTexture: "/title/bg/panorama0.png", id: 24
setupTexture: "/title/bg/panorama1.png", id: 25
setupTexture: "/title/bg/panorama2.png", id: 26
setupTexture: "/title/bg/panorama3.png", id: 27
setupTexture: "/title/bg/panorama4.png", id: 28
setupTexture: "/title/bg/panorama5.png", id: 29
setupTexture: "/title/mclogo.png", id: 30
setupTexture: "/gui/gui.png", id: 31
setupTexture: "/gui/particles.png", id: 32
TextureFX registered: eloraam.core.TextureAnimFX@2679c753, texId: 18, index: 239
TextureFX registered: eloraam.core.TextureAnimFX@5eb630d1, texId: 18, index: 255
setupTexture: "/gui/background.png", id: 33
[Rei's Minimap] MCPatcher HD Fix: Not found
Class not present: LightCache
setupTexture: "/mob/char.png", id: 35
setupTexture: "/gui/icons.png", id: 36
setupTexture: "%blur%/misc/glint.png", id: 37
Method not found: forge.ForgeHooks.onEntityLivingUpdate
Method not found: forge.ForgeHooks.onEntityLivingFall
Allocated subtessellator, count: 1
Method not found: forge.ForgeHooks.onEntityLivingAttacked
Method not found: forge.ForgeHooks.onEntityLivingHurt
java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.Integer
    at Reflector.callInt(Reflector.java:199)
    at acq.c(EntityLiving.java:972)
    at acq.a(EntityLiving.java:835)
    at bc.a(SourceFile:124)
    at acq.B(EntityLiving.java:489)
    at nn.J_(Entity.java:349)
    at acq.J_(EntityLiving.java:674)
    at xd.a(World.java:2182)
    at xd.f(World.java:2153)
    at xd.n(World.java:2039)
    at net.minecraft.client.Minecraft.k(Minecraft.java:1861)
    at net.minecraft.client.Minecraft.x(Minecraft.java:819)
    at net.minecraft.client.Minecraft.run(Minecraft.java:747)
    at java.lang.Thread.run(Unknown Source)
Stopping!


---------------- ModLoader Log -----------------
Jan 24, 2014 3:41:03 PM ModLoader init
FINE: ModLoader 1.2.5 Initializing...
Jan 24, 2014 3:41:03 PM ModLoader readFromClassPath
FINER: Adding mods from C:\Users\1\Desktop\13\instances\redpower\minecraft\bin\minecraft.jar
Jan 24, 2014 3:41:03 PM ModLoader readFromClassPath
FINER: Zip found.
Jan 24, 2014 3:41:04 PM ModLoader addMod
FINE: Mod Initialized: "mod_ModLoaderMp 1.2.5v1" from mod_ModLoaderMp.class
Jan 24, 2014 3:41:04 PM ModLoader addMod
FINE: Mod Initialized: "mod_MinecraftForge 3.1.2.90" from mod_MinecraftForge.class
Jan 24, 2014 3:41:04 PM ModLoader addMod
FINE: Mod Initialized: "mod_InvTweaks 1.41b (1.2.4)" from mod_InvTweaks.class
Jan 24, 2014 3:41:04 PM ModLoader setupProperties
FINER: axeIds set to 258, 271, 275, 279, 286, 1052
Jan 24, 2014 3:41:04 PM ModLoader setupProperties
FINER: toggleKey set to 46
Jan 24, 2014 3:41:04 PM ModLoader addMod
FINE: Mod Initialized: "mod_Timber 1.2.4" from mod_Timber.class
Jan 24, 2014 3:41:04 PM ModLoader addMod
FINE: Mod Initialized: "mod_ReiMinimap v3.0_04 [1.2.4]" from mod_ReiMinimap.class
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Adding mods from C:\Users\1\Desktop\13\instances\redpower\minecraft\mods\RedPowerControl-2.0pr5b1.zip
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Zip found.
Jan 24, 2014 3:41:04 PM ModLoader addMod
FINE: Mod Initialized: "mod_RedPowerControl 2.0pr5b1" from mod_RedPowerControl.class
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Adding mods from C:\Users\1\Desktop\13\instances\redpower\minecraft\mods\RedPowerCore-2.0pr5b1.zip
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Zip found.
Jan 24, 2014 3:41:04 PM ModLoader addMod
FINE: Mod Initialized: "mod_RedPowerCore 2.0pr5b1" from mod_RedPowerCore.class
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Adding mods from C:\Users\1\Desktop\13\instances\redpower\minecraft\mods\RedPowerLighting-2.0pr5b1.zip
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Zip found.
Jan 24, 2014 3:41:04 PM ModLoader addMod
FINE: Mod Initialized: "mod_RedPowerLighting 2.0pr5b1" from mod_RedPowerLighting.class
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Adding mods from C:\Users\1\Desktop\13\instances\redpower\minecraft\mods\RedPowerLogic-2.0pr5b1.zip
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Zip found.
Jan 24, 2014 3:41:04 PM ModLoader addMod
FINE: Mod Initialized: "mod_RedPowerLogic 2.0pr5b1" from mod_RedPowerLogic.class
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Adding mods from C:\Users\1\Desktop\13\instances\redpower\minecraft\mods\RedPowerMachine-2.0pr5b1.zip
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Zip found.
Jan 24, 2014 3:41:04 PM ModLoader addMod
FINE: Mod Initialized: "mod_RedPowerMachine 2.0pr5b1" from mod_RedPowerMachine.class
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Adding mods from C:\Users\1\Desktop\13\instances\redpower\minecraft\mods\RedPowerWiring-2.0pr5b1.zip
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Zip found.
Jan 24, 2014 3:41:04 PM ModLoader addMod
FINE: Mod Initialized: "mod_RedPowerWiring 2.0pr5b1" from mod_RedPowerWiring.class
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Adding mods from C:\Users\1\Desktop\13\instances\redpower\minecraft\mods\RedPowerWorld-2.0pr5b1.zip
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Zip found.
Jan 24, 2014 3:41:04 PM ModLoader addMod
FINE: Mod Initialized: "mod_RedPowerWorld 2.0pr5b1" from mod_RedPowerWorld.class
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Adding mods from C:\Users\1\Desktop\13\instances\redpower\minecraft\mods\rei_minimap
Jan 24, 2014 3:41:04 PM ModLoader readFromModFolder
FINER: Directory found.
Jan 24, 2014 3:41:04 PM ModLoader init
FINE: Mod Loaded: "mod_ModLoaderMp 1.2.5v1"
Jan 24, 2014 3:41:04 PM forge.ForgeHooks <clinit>
INFO: MinecraftForge v3.1.2.90 Initialized

Jan 24, 2014 3:41:04 PM ModLoader init
FINE: Mod Loaded: "mod_MinecraftForge 3.1.2.90"
Jan 24, 2014 3:41:04 PM ModLoader init
FINE: Mod Loaded: "mod_InvTweaks 1.41b (1.2.4)"
Jan 24, 2014 3:41:04 PM ModLoader init
FINE: Mod Loaded: "mod_Timber 1.2.4"
Jan 24, 2014 3:41:04 PM ModLoader init
FINE: Mod Loaded: "mod_ReiMinimap v3.0_04 [1.2.4]"
Jan 24, 2014 3:41:04 PM ModLoader init
FINE: Mod Loaded: "mod_RedPowerControl 2.0pr5b1"
Jan 24, 2014 3:41:04 PM ModLoader init
FINE: Mod Loaded: "mod_RedPowerCore 2.0pr5b1"
Jan 24, 2014 3:41:04 PM ModLoader init
FINE: Mod Loaded: "mod_RedPowerLighting 2.0pr5b1"
Jan 24, 2014 3:41:04 PM ModLoader init
FINE: Mod Loaded: "mod_RedPowerLogic 2.0pr5b1"
Jan 24, 2014 3:41:04 PM ModLoader init
FINE: Mod Loaded: "mod_RedPowerMachine 2.0pr5b1"
Jan 24, 2014 3:41:04 PM ModLoader init
FINE: Mod Loaded: "mod_RedPowerWiring 2.0pr5b1"
Jan 24, 2014 3:41:04 PM ModLoader init
FINE: Mod Loaded: "mod_RedPowerWorld 2.0pr5b1"
Jan 24, 2014 3:41:04 PM ModLoaderMp log
FINE: ModLoaderMP 1.0.0 Initialized
Jan 24, 2014 3:41:05 PM ModLoader addAllRenderers
FINE: Initialized

Skinned as Steve sometimes

I open my game to my son often, and at times he will ask, "Why are you steve?". Sure enough, seemingly random I will indeed be skinned as Steve.

I noticed in the console:

Params:
[--username, , --session, , --version, 1.6.4, --gameDir, C:/Documents and Settings/Ozzymud/Application Data/MultiMC5/instances/1.6.4 Direwolf20 1.0/minecraft, --assetsDir, C:/Documents and Settings/Ozzymud/Application Data/MultiMC5/assets/virtual/legacy, --tweakClass, cpw.mods.fml.common.launcher.FMLTweaker, --width, 854, --height, 480]

Dunno if the username param has anything todo with it.

Editting Mod Crash.

Whenever i click edit mods on my pack, It just crashes.

Updater claims to restart without needing to.

After selecting 'update after MultiMC closes' and closing multiMC a few minutes later after running the required ingame tests for my mod... I realize the updater said it'd restart MultiMC, while it did not (as expected)... Perhaps it shouldn't mention restarting if it won't.

Originally filed here

Return jar mods

Especially with 1.7.2 Forge being so buggy, mods are being released without Forge. And I can't add manually because it just overrides it.

add more language

do you have plans to add more language ?

Cant run mcforge i

1.5.2 forge cannot get libraries

when i make a 1.5.2 instance and try to add forge i get this error
http://pastebin.com/4rMDSRp9
0.0-dev151

Cannot Create "Java Virtual Machine"

I have two versions of Java and tested both of them. I get this error message every time. I've tried multiple instances. Please help! http://paste.ee/p/PiYgA
(and yes, I was trying multiple iChun mods with other ones in the mix)
Edit: I can now verify this is because of MultiMC: http://paste.ee/p/PQvwg
Edit2: Just updated but now just a shorter crash: http://paste.ee/p/QFDHF

Only crashes when I load CodeChickenCore and some other mods

http://paste.ee/p/PAysc
it gives me the Minecraft crashed with exitcode -1073740940.

Won't boot up with more than 512MB of RAM

Whenever I try to boot up MultiMC using more the 512MB of RAM, it says there isn't enough RAM. I have 4GB in my computer so something is definitely wrong. Plz Fix.

"Install Forge" window doesn't load Forge versions.

I am trying to install forge on one of my instances. In the "Edit Mods" window, I click "Install Forge" and that window pops up fine, but nothing shows in the list. Refreshing it does not help.

Adding or Removing Custom Icons Does Not Work

When you start MultiMC it works great until you want to use a custom icon. When you try to remove one nothing happens no errors nothing. When you try to add one it asks you to find and add it through your file explorer, but when you select it to add the icon the explorer window disappears and nothing happens. No errors. Nothing.

Software and Computer Info:
Running the newest and current MultiMC on Windows 8.1 AMD A6 with Readon HD Graphics 64-Bit with full 10-point touch support
Should be using newest java 32-bit (64-bit will not be detected)

Crashing on opening on mac 10.6.8

Heres the crash report
Process: MultiMC [2906]
Path: /Users/________/Downloads/MultiMC/MultiMC.app/Contents/MacOS/MultiMC
Identifier: org.multimc.MultiMC5
Version: ??? (???)
Code Type: X86-64 (Native)
Parent Process: launchd [133]

Date/Time: 2014-01-13 11:39:15.043 -0800
OS Version: Mac OS X 10.6.8 (10K549)
Report Version: 6

Interval Since Last Report: 3319643 sec
Crashes Since Last Report: 120
Per-App Interval Since Last Report: -102352 sec
Per-App Crashes Since Last Report: 21
Anonymous UUID:

Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread: 0

Dyld Error Message:
Library not loaded: /usr/lib/libc++.1.dylib
Referenced from: /Users/______/Downloads/MultiMC/MultiMC.app/Contents/MacOS/MultiMC
Reason: image not found

Binary Images:
0x7fff5fc00000 - 0x7fff5fc3bdef dyld 132.1 (???) <69130DA3-7CB3-54C8-ABC5-423DECDD2AF7> /usr/lib/dyld

Cannot connect to servers in 1.7.2 and 1.7.4 (Mac) - Works fine on 1.6.4 - Protocol Changed..

Optifine 1.7.4 not working even if installed...

Edit: Ok i figured now. Optifine.jar is a installer.. woops im sorry

---

Straight to the problem:
I have installed optifine 1.7.4 jar with MultiMc in a new instance called 1.7.4
When i launch it it works just fine... but without optifine (no zoom or anything optifinish)
Please Help. Thank You!

Skins messed up when running MC 1.8 dev snapshots

Skins display incorrectly when using MMC to launch. Works fine with the native launcher.

Does not detect java consistently

Path 'java' is always 32-bit (even though java -version shows 64x) and it either only detects 32-bit OR 64-bit, never both. Tested on 4 computers.

Ability to share resourcepacks/saves/screenshots between instances

It'd be awesome if your saves and/or resourcepacks would persist across instances. It could be set up as a toggle globally, or per instance.
I use the same texture pack on multiple different instances, so the ability to update one and it would update all would be quite helpful.

To a lesser extent, a global place to store screenshots would be nice, but that's a pretty niche feature and doesn't impact the game terribly.

Add a search box to the multimc console?

Would it be possible to use PCRE or some other engine to add a search box with regex capability to the multimc console?

Thanks in advance. :)

Update Problem with bad windows Username - minor bug

If your windows username contains characters like ášč atd. then it crashes with
file does not exist.

Missing required libraries for OpenSSL

I got an Yggdrasil task cancelled error

Instance problem!

When I start the MulticMC5 program my instance's are never there plz help me as to why this is happening ?

Implement progress bar for copy operations

When tracking FTB instances, if you try to copy it the entire program freezes and you have to close out and it fails to successfully copy the instance. It creates a folder, however it doesn't recognize it.

Doesn't execute on LINUX 32bit

Downloaded and extracted MultiMC. The MultiMC file is automatically set to executable. But it does nothing.

Running on well behaved UBUNTU 13.10

Don't know how to diagnose further (I really shouldn't be on github!)

MultiMC refuses to download minecraft 1.6.4.

I set up a 1.6.4. instance and when I try to run it it gives me this error: http://paste.ee/p/mcGTx
Folder /MultiMC/instances//minecraft/ is only contains a log and an icon

Can't allocate more than 1024mb of ram to minecraft

When I try to make it run with a max of more than 1024MB of ram it gives me and error and says
"Error occurred during initialization of VM
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit."

HELP PLEASE

LiteLoader support for 1.7

There is a beta of LiteLoader for 1.7.2, support for this version would be nice to have.

Cannot install Optifine

I have attempted in every way that I am capable of to install Optifine as one of the instances, and yet I can't do it, because every time I run the instance, even though the files are already there and in their proper places, it tries to download them, and fails because they are not official MC files.

Forge for 1.5.2 uses old URLs for downloading jars

When installing Forge for a 1.5.2 instance, MultiMC uses this URL for these jars:
http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar
http://files.minecraftforge.net/fmllibs/scala-library.jar

the old files have apparently been moved elsewhere

Track FTB on XP, hard coded to AppData/Roaming?

Looking at settings in dev167, under Features/FTB the "Track FTB instances" path box is greyed out and reads: "C:\Documents and Settings/Ozzymud/AppData/Roaming/ftblauncher" whereas my FTB is installed to "C:\Documents and Settings\Ozzymud\Application Data.FTB"

Even after moving my FTB install to that path, I can't seem to see anything in MMC.

Cant Open Instance

When I try to open any instance I have I get this error:

Exiting with -1
Failed to find Minecraft main class:
java.lang.ClassNotFoundException: net.minecraft.client.main.Main
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:132)
at org.multimc.EntryPoint.listen(EntryPoint.java:127)
at org.multimc.EntryPoint.main(EntryPoint.java:52)
Minecraft exited with exitecode -1.

Please help, I dont know what to do!

Minecraft Window Partially Transparent When Using MultiMC

Image of bug:

I am using Arch Linux (x64) and the Cinnamon Desktop Environment. This bug only occurs when running Minecraft using MultiMC. Nothing in the log suggests an error occured.

Add lib file accessibility (part issue, part idea)

I was thinking that you could add a lib file tab with the jar mods, core mods, loader mods, and texture packs. The reason behind this is Minecraft Forge can sometimes not be able to download the lib files that it and the mods need. As of now you can't add the lib files yourself which makes me not able to play my Minecraft instance because Forge can't download them.

Use green/red color to indicate status of Minecraft services instead of up/down arrow

This would increase readability. It is currently difficult to look at the small arrows and decipher what they are saying, although this is an excellent feature built right into MMC. Color feedback is much easier for us to see and understand. Both http://xpaw.ru/mcstatus/ and https://help.mojang.com/ use it (green = online, yellow = slow, red = offline, blue = updating/checking/other)

Cannot login in 'online' mode until 2nd try

When I start up MultiMC and start an instance, it will try and refresh the login token. After a few seconds, this will fail and ask me to enter my username for offline. Only after clicking cancel and selecting the same instance again will it work with no problems.

This problem is completely repeatable, and happens on each and every launch, and only recently has it started happening.

Environment:
MultiMC 5 v0.2.1-dev166
Crunchbang Linux 64-bit - Debian sid

Add ability to run server instance

Ability to run server instance, an easy way to start your local minecraft server with mods and config from your single player instance, for fun with friends in local network.

Allow logging in with non-premium accounts

Hello,

I have been using MultiMC for a while, including the multiMC5 beta release.
Had to remove it to clean my laptop for a few days, thinking it would be the same when I redownload it.

Seems that I cannot login. I am not a premium member, but I managed to log in in the past so..

Each time I try adding an account I get an login error saying "An unknown error occurred when processing the response from the authentication server."

Tried making a new mojang account, but this has not made any result as for now.
Anyone known with this problem, or got ideas on how to fix it?

Dutch

account problem

When I try to add a new account MultiMC says this:

An unknown error occurred when trying to communicate with the authentication server: Error downloading https://authserver.mojang.com/authenticate - server replied: Service Unavailable.

(This message appears after writing username and password)

About link doesnt work

Running 0.1.1-dev154
Clicked about Icon that looks like a I with a blue circle
Clicked the github link
Nothing happened

Feature to automatically update to newest snapshot

Would it be possible to add a checkbox for instance options to "use latest development version"?

Can't add Minecraft account

When I try to add my account it says "Yggdrasil task cancelled" and my account doesn't get added. I've tried to add it multiple times trying both my username and email address. I can still log in on the normal Minecraft launcher without any problem and I'm absolutely positive that I typed my account information correctly on MultiMC.

Stable release for OSX won't show any Forge Lists? How to install Forge?

Trying to add forge in a new instance on stable release.

I click on the "install forge" - it goes to fetch a list, but I get an empty list back.

I don't seem to be able to install the forge manually either, I have the zip but can't get MMC to do anything with that.

Uploading Log gives no error, but a "X" icon and an OK button

Nothing more than what the title says:

Using Version 0.1.1-dev165 on Windows 7 64x

Can't install .jar mods

Hello all.

I am unable to install mods directly into the minecraft.jar. I want to install the Optifine 1.7.4 preview, but because Forge hasn't updated it is impossible to install it. How do I go about installing it directly into the minecraft.jar file?

Thank you.