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Flutter bugs

some bugs may face you​

libc++_shared.so​

if your project use one of this packages flutter_ffmpeg: A package for adding FFmpeg support to Flutter apps. flutter_vlc_player: A package for adding VLC player support to Flutter apps. flutter_opencv: A package for adding OpenCV support to Flutter apps.

  • and you face this bug while you try to run the app
* What went wrong:
Execution failed for task ':app:mergeDevelopmentDebugNativeLibs'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.MergeNativeLibsTask$MergeNativeLibsTaskWorkAction
   > 2 files found with path 'lib/arm64-v8a/libc++_shared.so' from inputs:
      - /Users/rahman/.gradle/caches/transforms-3/a46e50a5c858fbf9fa136cba41fb846a/transformed/jetified-libvlc-all-3.6.0-eap2/jni/arm64-v8a/libc++_shared.so
      - /Users/rahman/.gradle/caches/transforms-3/ca694aba195835fea687f519a60e6fb7/transformed/jetified-ffmpeg-kit-min-gpl-5.1.LTS/jni/arm64-v8a/libc++_shared.so
     If you are using jniLibs and CMake IMPORTED targets, see
     https://developer.android.com/r/tools/jniLibs-vs-imported-targets
  • then the solution is

  • The error you're encountering occurs when there are duplicate native libraries with the same name in your Android project. In this case, both libvlc-all-3.6.0-eap2 and ffmpeg-kit-min-gpl-5.1.LTS have a file named libc++_shared.so.

  • To resolve this issue, you can use the packagingOptions block in your build.gradle (app level) file to pick one of the libraries and exclude the other. Follow these steps:

  1. Open your build.gradle file in the app module.

  2. Inside the android block, add a packagingOptions block as follows:

android {
    // ...

    packagingOptions {
        pickFirst '**/libc++_shared.so'
    }

    // ...
}
  • Save the file and try building your project again.

The packagingOptions block with pickFirst will ensure that the build process uses the first occurrence of libc++_shared.so it encounters and ignores the others. This should resolve the conflict and allow you to build your project successfully.

any package conflict happens​

  • when your try to run flutter pub get after you add the required flutter packages and see packages conflict
  • you need to update your package to the last version suppose you have conflict with image package and run flutter pub upgrade
  • and your image package inside your pub.yaml is lower then version 3 and it in v chat is v ^4.0.15
  • then you need to update your image package to v ^4.0.15 or above
  • and if you cant update at this moment witch not recommend you can use dependency override like
name: my_app
dependencies:
  your_pacakge: ^1.2.0
dependency_overrides:
  your_pacakge: '3.2.1'