Android Studio and android.support.v4.app.Fragment: cannot resolve symbol

DID NOT WORK:

I have already had the following dependency in my build.gradle

implementation 'com.android.support:support-v13:26.0.2'

I have tried all of the following,

  • Invalidate Caches/Restart
  • Sync project with gradle files
  • Clean project
  • Rebuild project
  • gradlew clean

But, none of them worked for me.

SOLUTION:

Finally, I solved it by deleting “/.idea/libraries”, and then synced with gradle and built again.

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