Parse invalid session token (Code: 209, Version: 1.7.1)

Question

I have just update both my Parse and Facebook SDK's (1.7.1 and 4.0 respectively) - both were an absolute pain to get working I might add!

However I now getting 209 errors when I try to log in with Facebook.

Here's an example of my code:

- (void)loginWithFacebook:(HMSuccessBlock)completion{ NSArray *permissionsArray = @[@"user_about_me",@"user_location",@"user_friends",@"user_relationships"];  // Login PFUser using Facebook  [PFFacebookUtils logInInBackgroundWithReadPermissions:permissionsArray block:^(PFUser *user, NSError *error) {     if (!user) {         NSLog(@"Uh oh. The user cancelled the Facebook login.");         UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Log In Error"                                                         message:error.localizedDescription                                                        delegate:nil                                               cancelButtonTitle:nil                                               otherButtonTitles:@"Dismiss", nil];         [alert show];         completion(NO, error);      } else if (user.isNew) {         NSLog(@"User signed up and logged in through Facebook!");         if (completion) {             completion(YES, nil);         }     } else {         NSLog(@"User logged in through Facebook!");            completion(YES, nil);     } }]; } 

Which yeilds the following [Error]: invalid session token (Code: 209, Version: 1.7.1)

My initial thinking is that the issue is something to do with my code in the app delegate - on older versions of the facebooksdk I would apply the following code

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation { return [FBAppCall handleOpenURL:url               sourceApplication:sourceApplication                     withSession:[PFFacebookUtils session]]; } 

However I cant seem to find anything to replicate this in the updated version, hence my code being

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation { return [[FBSDKApplicationDelegate sharedInstance] application:application                                                       openURL:url                                             sourceApplication:sourceApplication                                                    annotation:annotation]; } 

Any help would be greatly appreciated.

Answer 1

Delete the app from the simulator or your phone, then rebuild and re-run the app. Sometimes an old token gets cached. I just solved this problem for my app.

Answer 2

Check out this page: https://parse.com/tutorials/session-migration-tutorial

Most likely your app was using legacy session tokens. You can migrate to revocable session tokens by adding this to your app delegate right after you set the app id and client key.

    [PFUser enableRevocableSessionInBackground]; 

Parse's website has a section on handling this error that might be of more help to you: https://www.parse.com/docs/ios_guide#sessions-handleerror/iOS