Android Studio 'android.content' and 'android.view' sub classes are missing

Question

In Android Studio packages android.content and android.view sub classes are missing, sub claases like

• View
• Context
• LayoutInflater

i tried

• Invalidate Cache/ Restart
• Rebuild Project
• Clean
• Updated All Dependencies

but no one worked for me.

enter image description here

Answer 1

In case anyone gets the same problem: Delete and re-download the whole Android API from SDK Manager.