Android - activity_main cannot be resolved or is not a field

Question

Previous people have had the same error message, but the solution has always been to remove or modify some import \"android.R\". I have no such import so I\'m really lost

Answer 1

I have three ways that help me to solve this problem, may be it works for you.

1. first clean than try to import your project like this: import com.example.mapssample.R;
2. right click on project go to properties--> android --> select target.
3. clean