Using AccessToken to retrieve Firebase user causing Firebase error with Facebook auth: “Unsuccessful debug_token response from Facebook” Code 190
问题 Setting up Facebook Authentication with Firebase on Android and getting the following pesky error: com.google.firebase.FirebaseException: An internal error has occurred. [ Unsuccessful debug_token response from Facebook:{"error":{"message":"Invalid OAuth access token signature.","type":"OAuthException","code":190,"fbtrace_id":"BLR\/UAx2fzn"}} ] My goal is not to get rid of this error, it's to be able to get information about the user from Firebase. At the moment, even though I seem to able to