MissingPluginException (MissingPluginException(No implementation found for method read on channel plugins.it_nomads.com/flutter_secure_storage)) about flutter_secure_storage

[Kyle-Mendes]

I actually think I might have fixed it!

I manually removed the app from my emulator (went to the app drawer, long pressed, app info, uninstall) and it seems to be building again.

Thanks for the help in debugging this!

[mogol]

that’s great,
you are welcome.

[wilyanto]

After few hours of surfing. Finally SOLVED for me. Here is what I found out.

If you are calling flutter_secure_storage (or any packages) method in background service (as example, when you are using notification onBackgroundMessage). This exception occurred because usually our plugin registered at main.dart in foreground, but if we are calling our plugin's method in background we need to manually registered our plugin in our app/src/main/[kotlin/java]/.../Application.[java or kt].

Inside the Application.java or Application.kt

After done that, do flutter run again. Hope it helps!

[mogol]

Hi @Kyle-Mendes
is it iOS or Android?

Flutter has such issue from time to time. You need to force dependency update, e.g. add new plugin , get packages and remove the plugin. So it shouldn't be problem of this package.

[Kyle-Mendes]

Just tested, and I'm only getting the error on Android right now.

The steps I've tried

1. flutter doctor
2. flutter clean
3. remove the flutter_secure_storage from ~/.pub_cache and then flutter packages get

So are you suggesting

4. add a package, flutter packages get, remove the package?

[mogol]

add a package, flutter packages get, remove the package?
yes, it should be the only step to solve.
try to add, get and remove e.g. https://pub.dartlang.org/packages/image_picker

The error means that native code was proper added as a dependency. If it doesn't help please share flutter doctor -v

[Kyle-Mendes]

That doesn't seem to have worked, unfortunately

    • Flutter version 1.3.8 at /Users/user/Projects/flutter
    • Framework revision e5b1ed7a7f (5 weeks ago), 2019-03-06 14:23:37 -0800
    • Engine revision f4951df193
    • Dart version 2.2.1 (build 2.2.1-dev.0.0 571ea80e11)

[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
    • Android SDK at /Users/user/Library/Android/sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-28, build-tools 28.0.3
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-915-b08)
    • All Android licenses accepted.

[!] iOS toolchain - develop for iOS devices (Xcode 9.2)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 9.2, Build version 9C40b
    ✗ libimobiledevice and ideviceinstaller are not installed. To install with Brew, run:
        brew update
        brew install --HEAD usbmuxd
        brew link usbmuxd
        brew install --HEAD libimobiledevice
        brew install ideviceinstaller
    ✗ ios-deploy not installed. To install:
        brew install ios-deploy
    ! CocoaPods out of date (1.5.0 is recommended).
        CocoaPods is used to retrieve the iOS platform side's plugin code that responds to your plugin usage on the Dart side.
        Without resolving iOS dependencies with CocoaPods, plugins will not work on iOS.
        For more info, see https://flutter.io/platform-plugins
      To upgrade:
        brew upgrade cocoapods
        pod setup

[✓] Android Studio (version 3.0)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 22.2.1
    • Dart plugin version 171.4424
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-915-b08)

[✓] VS Code (version 1.33.0)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 2.25.0

[✓] Connected device (2 available)
    • Android SDK built for x86 • emulator-5554                        • android-x86 • Android 8.0.0 (API 26) (emulator)
    • iPhone X                  • AFE355F9-BD65-4E01-AD21-956C7163274B • ios         • iOS 11.2 (simulator)

! Doctor found issues in 1 category.

[mogol]

I found this comment. Can you check
flutter/flutter#14137 (comment) ?

[Kyle-Mendes]

Just tried removing all of ios and android. Ran flutter create . and then updated the gradle file to have the minSdk for this package. I'm still encountering the title error however :(

EDIT: I also reset my computer and tried a different Flutter version, with no luck

[mogol]

Did you experience the same issue with another package with native plugins? Can you try any new package , eg Firebase or image pickers ?

[Kyle-Mendes]

I just tested a very simple app using the image_picker that you shared before, and was able to get it to run.

import 'package:flutter/material.dart';
import 'package:image_picker/image_picker.dart';

void main() => runApp(MyHomePage());

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  var _image;

  Future getImage() async {
    var image = await ImagePicker.pickImage(source: ImageSource.camera);

    setState(() {
      _image = image;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        home: Scaffold(
      appBar: AppBar(
        title: Text('Image Picker Example'),
      ),
      body: Center(
        child: _image == null ? Text('No image selected.') : Image.file(_image),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: getImage,
        tooltip: 'Pick Image',
        child: Icon(Icons.add_a_photo),
      ),
    ));
  }
}

[craiglabenz]

@Kyle-Mendes That also worked for me when nothing else was