Android Studio cannot resolve symbol but code executes correctly

Question

I have recently created a library Jar file that I imported in my Android project. I am able to call functions and use classes that are present in this Jar file, but Android

Answer 1

Try following steps:

1. Close your project then in your project folder delete project /.idea
2. Delete /.gradle folder also
3. Noe choose File option from menu on left top side of android studio
4. Select the option: Invalidate Cache/Restart It will open a dialog
5. Click on the first button with option: Invalidate and Restart

After trying above options everything should be working fine.