Flutter : Several variant outputs are configured to use the same file name

Question

I am just trying to run the first app and this is what happens:

FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:packageDebug'.
> Several variant outputs are configured to use the same file name "resources-debug.ap_", filters : MAIN:MAIN

Answer 1

Please try flutter clean and rebuild.

Answer 2

I got the same error while trying to integrate FCM into my application.. The problem is in the older build file.. i.e as we are editing our Manifest file we need to rebuild the project so..

flutter clean
flutter run 

Make sure to do gradle sync if the problem persist.. It solved the problem for me..