How to Solve Execution Failed for Task ‘:app:compileFlutterBuildDebug’

Initial Steps:

1. Clean the Project:

flutter clean

2. Remove pubspec.lock

Location: your_project/pubspec.lock
Delete this file.

3. Run flutter pub get

flutter pub get

4. Build the App

flutter build apk

If the issue still persists, follow these steps:

1. Clean the Project again:

flutter clean

2. Remove pubspec.lock

Location: your_project/pubspec.lock
Delete this file.

3. Force Upgrade Flutter:

flutter upgrade --force

4. Repair Flutter Cache:

flutter pub cache repair

5. Run flutter pub get and Resolve Conflicts:

flutter pub get

6. Build the App Again:

flutter build apk