What is the red .gradle file in android studio 1.2?

Question

I have just updated my Android Studio to v1.2. Now I see a folder named ".gradle" marked red. It does not produce any errors but I wonder whether it indicates something is wrong. So, why is this folder marked red?

Thanks.

Answer 1

It means folder is excluded. See settings -> directories, or press RMB over this folder and look at "Mark directory as" menu item.