Android Studio inline compiler showing red errors, but compilation with gradle works fine

gistfile1.txt

The following steps helps

1. Close your project, and in your project folder delete project/.idea/libraries and project/.idea/caches 
2. Delete ~/.gradle folder.
3. restart it from File > Invalidate Caches/ Restart and click in the Just restart, no need to 'close' it.

If still it does not work then:

1. update the library version in gradle with any random number, and sync.
2. this will show error. 
3. revert the change and again sync.