Facebook Authentication

[Mark]

Hi, 

I had FB Authentication working prior to Swift 3/Xcode8/iOS10 and now I'm trying to get it running but I am getting errors

let credential = FIRFacebookAuthProvider.credential(withAccessToken: (AccessToken.current?.authenticationToken)!)

my credential is giving me the following error

 message = "Unsuccessful debug_token response from Facebook: {\"error\":{\"message\":\"(#100) The App_id in the input_token did not match the Viewing App\",\"type\":\"OAuthException\",\"code\":100,\"fbtrace_id\":\"GIHW+QXnNup\"}}";

            reason = invalid;

I have already checked my plist info and the fb details are correct... any ideas ?

cheers

Mark

[Jacob Wenger]

Hey Mark,

What version of the Firebase SDK are you using? Also, how are you getting the access token passed into that method? Is it possible the access token you are retrieving is for a different Facebook app? That's what the error seems to be saying.

I assume you've already seen this, but make sure you followed the instructions here (including the stuff in the "Before you begin" section) to do Facebook authentication on iOS.

Cheers,

Jacob

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