MenuInflater can't find Menu Resource Directory

Question

Hi, I am new to Android development. I am facing a problem right now when I write inflater.inflate(R.menu.dropdown,menu); inside public boolean onCreateOptionsMenu(Menu menu) @Override method inflater can't find Menu Resource Directory ( As you see in the picture)

After writing inflater.inflate(R. It shows me other options like id, mipmap, etc but it can't show the menu option. If I press Alt+Enter it shows Create menu resource file 'dropdown.xml' but dropdown.xml already exists in the Menu Resource Directory

Does anybody know how to solve this problem

Answer 1

Restart you `Android studio`.....thats all

Actually, sometimes Android Studio shows unexpected behaviour, in future, you will face a lot of such problems so it's better to Restart whenever you face such unexpected problems.