Flutter default counter app fails to run on Android emulator (Gradle task assembleDebug failed)

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Summary

The Flutter default counter app fails to run on an Android emulator due to a Gradle task assembleDebug failed error. This issue occurs despite proper installation of Flutter, Android Studio, and the Android Emulator on a Windows 11 operating system.

Root Cause

The root cause of this issue is related to Gradle build operations and plugin resolution. The error message indicates a problem with resolving the dev.flutter.flutter-plugin-loader plugin and moving temporary workspaces to immutable locations. Key causes include:

  • Plugin resolution errors
  • Gradle cache issues
  • Temporary workspace movement failures

Why This Happens in Real Systems

This issue can occur in real systems due to various reasons, including:

  • Corrupted Gradle caches
  • Incompatible plugin versions
  • Insufficient permissions for Gradle to move temporary workspaces
  • Conflicting dependencies in the project

Real-World Impact

The impact of this issue includes:

  • Failed app builds
  • Inability to run apps on Android emulators
  • Delayed development and testing
  • Increased frustration for developers

Example or Code (if necessary and relevant)

# Clean the Gradle cache
gradle --stop
# Delete the .gradle folder in the project directory
rm -rf .gradle
# Run the app again
flutter run

How Senior Engineers Fix It

Senior engineers can fix this issue by:

  • Cleaning the Gradle cache
  • Updating plugin versions
  • Checking permissions for Gradle
  • Resolving conflicting dependencies
  • Running the app with –stacktrace or –debug options to get more log output

Why Juniors Miss It

Junior engineers may miss this issue due to:

  • Lack of experience with Gradle and plugin resolution
  • Insufficient knowledge of Android emulator configuration
  • Overlooking error messages and log output
  • Inadequate troubleshooting techniques

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