I get the following exception when trying to use the Google Play Services V2 library after following the official tutorial.
java.lang.NoClassDefFoundError: c
I have the same issue with Android Studio when build project without Gradle. It might be problem with the name of package in AndroidManifest.xml in GooglePlayService project. It should be package="com.google.android.gms".
Issue appears when I add Library Project as "New Module" instead "Import Module".
When you choose New Module, Android Studio shows dialog to specify "Module name" and "Package name" and by default "Package name" looks like "com.example.MODULE_NAME_YOU_SPECIFED" which is wrong. It's very easy to miss it, because project builds with success.
When you add Library Project by "Import Module" everything should be OK, because Android Studio just add project without doing any changes with source code of Library Project.