NSInvalidArgumentException thrown from ACAccountStore when calling [FBSession openActiveSessionWithPermissions…] on iOS 6.0 and iOS 6.0.1

Question

With Facebook iOS SDK 3.1.1, I\'m performing login using this call -

NSArray *permissions = [[NSArray alloc] initWithObjects: @\"email\", @\"user_birthday\",         


        

Answer 1

I found a work around for this bug. Note that the bug is described here as well: https://developers.facebook.com/bugs/139251032898548

The Facebook SDK does not do a null check for return value of accountTypeWithAccountTypeIdentifier. See https://github.com/facebook/facebook-ios-sdk/blob/master/src/FBSystemAccountStoreAdapter.m?source=c#L176

To work around the problem, you can do the following check before attempting facebook lgoin:

if ([[[ACAccountStore alloc]init] accountTypeWithAccountTypeIdentifier:@"com.apple.facebook"] == nil) {
   NSLog(@"Cannot proceed, not facebook account type identifier");
   return;
}