android studio Error running 'app': Gradle project sync failed. Please fix your project and try again. code example

Example: Error: Gradle project sync failed. Please fix your project and try again.

Goto File -> Invalidate caches / Restart.
Shutdown Android Studio.
Rename/remove .gradle folder in the user home directory.
Restart Android Studio (It will download gradle metadata and data)
Gradle build succeed.
Rebuild project.
Done.