Failed to get permission info for android.permission.android.permission.READ_CONTACTS

Hi there I am trying to implement Google Play Service into my Project, which is compiled fpr Android. Sadly, I am always getting following Error in the Log: Failed to get permission info for android.permission.android.permission.READ_CONTACTS, manifest likely missing custom permission declaration Permission android.permission.android.permission.READ_CONTACTS ignored My Application is running, until I call the Social.localUser.Authenticate function, than it crashes. Here is my AndroidManifest.xml File: Does anyone of you have an Idea, what could be causing this error? Thank you for answering!