Android Application ID conflicts in Kotlin and Java MainActivity classes
Error:
Type project.com.project.MainActivity is defined multiple times
./project/build/app/intermediates/javac/debug/classes/project/com/project/MainActivity.class,
./project/build/app/tmp/kotlin-classes/debug/project/com/project/MainActivity.class
Both Kotlin and Java MainActivity classes are generated with the flutter run
command and both include package project.com.project
MainActivity.class
package project.com.project
public class MainActivity {
public MainActivity() {
}
}
MainActivity.kt
package project.com.project
import io.flutter.embedding.android.FlutterActivity
class MainActivity: FlutterActivity() {
}
Environment :
Android Studio 4.1.2
Gradle Plugin 4.1.2
Gradle Version 6.5
Flutter Version 1.22
Tried in Android Studio :
Build -> Clean Project,
Build -> Rebuild Project,
File -> Invalidate Cache Restart
Tried in Command Line :
flutter clean
flutter run
rm -Rf ~/.gradle/caches
The error is still there.
The conflict is caused by autogenerated Kotlin references in gradle.
Removing all Kotlin entries from gradle config files is sufficient to get the flutter run
command back to order