“Default Activity Not Found” on Android Studio upgrade

Question

I upgraded IntelliJ Idea from 12.0.4 to 12.10.

Now all the modules in my Android project give the error:

Error: Default Activity Not Found

Answer 1

Firstly make sure that you have included default activity in manifest.

Example:

If you have tried everything and nothing seems to works then

• Delete the cache from your %Home%\.gradle\caches and sync project again.

Or check this answer

https://stackoverflow.com/a/53476487/5507705