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Editorial Team
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Asked: 2026-05-26T14:28:58+00:00

I’ve searched for an answer to this question and have been unable to find

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I’ve searched for an answer to this question and have been unable to find any answers.

I’ve got a range of iOS apps that I want to use the same Facebook app. The SSO works perfectly with the first app I created and tested on. But all the other fail and get returned an unknown_error.

I’m calling:

self.facebook = [[[Facebook alloc] initWithAppId:<app id> urlSchemeSuffix:<app suffix> andDelegate:self] autorelease];

This is all working and even when the sign ins are failing I am returned back to the correct app. However, each time my the:

- (void)fbDidNotLogin:(BOOL)cancelled

method get called where cancelled equals NO.

Are there some other settings I need to change somewhere? Is this because my apps have not yet been submitted to the App Store (except the one that is working)? If that’s the case, how am I meant to test this stuff?

Thanks,
Daniel

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1 Answer

  1. Editorial Team

    I found the useful “unknown_error” message only occurred when authenticating via the iOS Facebook app.

    A quick and dirty workaround is to force the Facebook SDK to use mobile safari for authentication. Look for [self authorizeWithFBAppAuth:YES safariAuth:YES] in Facebook.m and change the FBAuth value.

    Not the nicest solution… but if you need a project out of the door… 😉

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