Multiplugin, InMobi and QCAR

I have an application that has augmented reality with vuforia and I've got advertising with InMobi. When I built it, the single manifest has the activities of inmobi. I tried to mix the activities of inmobi and vuforia, but only one works because the two are main(action android:nameandroid.intent.action.MAIN). Anyone know how I have to change the manifest so that both plugins work? Thanks a lot