how to overcome Android Studio cannot resolve symbol for android classes

Question

I'v just installed Android Studio 0.8.2 for my first time and I have a lot of "Cannot resolve symbol" errors. The errors occur on both new projects and projects which were exported from eclipse.

JDK version: jdk1.8.0_11

Android studio errors:

Project's grade file

Answer 1

You can do "File" -> "Invalidate Caches...", and select "Invalidate and Restart" option to fix this.