I am using Android studio 1.0.1. I have a java module referred by other modules in my project. I have checked it out from SVN But now every
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Close the Android Studio and Move ".idea" Folder and paste it outside Project root folder( For Back up if you need).
Open the Android studio. On Opening the project it"ll ask add module (app) to your project. You can ignore the same.
It set set default build variant to be "debug". You can see build variant tab on left corner or hover on "Monitor" Symbol on left bottom
Note: No need to change your .iml file of your project.tom to get build variant option and "Invalidate Cache and Restart" will also not work rather it will clear your history files too!.