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Invalid scope messages when using Facebook connect.
Users that see invalid scope messages when using Facebook connect should update their App with Facebook.
As of 30th April 2015 Facebook started Graph API v1.0 Deprecation. What this means to you in basic terms is if your app is asking for extended permissions like publish_stream email, public_profile or user_friends and a few more, you will need to follow the information here from facebook.
developers.facebook.com/docs/apps/api-v1-deprecation