Cannot Resolve symbol R

Question

I was working on Android Studio for adding a short toast message.(I was making an Android Wear Application)

I couldn\'t know why this code has error on \'symbol R\'

Answer 1

Below some procedures are mentioned :

1) Try Build -> Clean/Rebuild project .

2) Manually typing import .R, If in import R is missing.

3) complete all resources of its corresponding XML file .

I hope any one of them would be helpful for you as there is no Particular way to resolve this issue.