debug {
        debuggable true
        packageNameSuffix ".debug"
        buildConfigField BOOLEAN, IS_DEV, TRUE
    }

Failure [INSTALL_FAILED_DUPLICATE_PERMISSION perm=com.app.name.permission.C2D_MESSAGE pkg=com.app.name]

<permission
    android:name="com.app.name.permission.C2D_MESSAGE"
    android:protectionLevel="signature"/>

<uses-permission android:name="com.app.name.permission.C2D_MESSAGE"/>