“Cannot find symbol R” error after renaming package name

Question

After renaming my project package name (with Refactor), I got this error:

Error:(7, 44) error: cannot find symbol class R

All of my R

Answer 1

3 packages you may see as marked, When you edit the package name make sure you change all 3 of them else you may face R error which will prompt you to press alt+enter to name it as ur old package name