iOS 6 - Facebook sharing procedure fails with error “The proxied app is not already installed”

Question

Though, there is such a question Facebook Error (7) iOS 6 it\'s already closed without any answer! While obtaining an access to user\'s facebook account I\'ve got an error:

Answer 1

After experiencing this error on one of my devices (after seeing the correct, expected iOS alert view asking for me to approve Facebook access to my app):

'The Facebook server could not fulfill this access request: Invalid application ID.'

I finally found the problem.

Although it initially appears to be a problem with the Facebook app setup on the FB developer site it turned out that my device's iOS Facebook account no longer had a valid password associated with it - this can happy when users restore an iOS backup to a new device. Once I sorted that in my device settings everything worked as expected.

I've not experienced any problems requesting 'publish_stream' in the first FB permissions access request - I actually think the real problem here is that the error messages are so random that they don't help developers to locate the source of the errors we're experiencing thanks to Apple and Facebook's lack of unity!