Flutter App Stuck at Running Gradle task ‘assembleDebug’

If Flutter app is stuck at “Running Gradle task ‘assembleDebug'”, try these steps to resolve it:

1. Check Internet Connection

Gradle might be downloading dependencies. Ensure you have a stable internet connection.

2. Run with –verbose Flag

Run the command with verbose logging to check for detailed errors:
flutter run --verbose

3. Delete .gradle and .idea Folders

Run the following commands in your project root:
rm -rf android/.gradle android/.idea
rm -rf ~/.gradle

Then run:
flutter clean
flutter pub get

4. Check for Flutter and Dart Updates

Ensure you’re using the latest stable version:
flutter upgrade

5. Invalidate Cache & Restart in Android Studio

Open Android Studio
Go to File > Invalidate Caches / Restart
Select Invalidate and Restart

6. Manually Run Gradle Build

Try running Gradle separately:
cd android
./gradlew assembleDebug --stacktrace
This will show specific Gradle errors.

7. Check Java Version

Make sure you’re using a compatible Java version (Java 11 recommended for Flutter).
java -version
If needed, update Java and set the correct JAVA_HOME path.

8. Check for Dependency Conflicts

Open android/build.gradle and ensure dependencies are compatible with your Flutter version.

9. Switch to Stable Channel (If on Beta/Dev)

flutter channel stable
flutter upgrade

10. Kill Background Gradle Processes

If Gradle is stuck, try killing it:
killall -9 java

11. Increase Gradle Memory (If It’s a Large Project)

Edit android/gradle.properties and add:
org.gradle.jvmargs=-Xmx4096M

After trying these, run:
flutter clean
flutter pub get
flutter run