“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

This method works for me Click on the app icon and then choose edit configurations. In the edit-configuration choose specified activity instead of the default activity. Then give the path of the activity below.

In the end sync with the gradle files.