Ios – Facebook login using Parse not working

facebookiosobjective cparse-platform

I am trying to use Parses SDK to make the single sign on for Facebook but when I press the login button I get this error:

Uh oh. An error occurred: Error Domain=com.facebook.sdk Code=2 "The
operation couldn’t be completed. (com.facebook.sdk error 2.)"
UserInfo=0x1d5bac20
{com.facebook.sdk:ErrorLoginFailedReason=com.facebook.sdk:SystemLoginDisallowedWithoutError,
com.facebook.sdk:ErrorSessionKey=,
expirationDate: (null), refreshDate: (null), attemptedRefreshDate: 0001-12-30 00:00:00 +0000, permissions:(null)>}

The code when I hit the button is almost the same as in Parse's tutorial

- (IBAction)loginButtonTouchHandler {
    // The permissions requested from the user
    NSArray *permissionsArray = @[ @"user_about_me", @"user_birthday"];

    // Login PFUser using Facebook
    [PFFacebookUtils logInWithPermissions:permissionsArray block:^(PFUser *user, NSError *error) {
        [_activityIndicator stopAnimating]; // Hide loading indicator

        if (!user) {
            if (!error) {
                NSLog(@"Uh oh. The user cancelled the Facebook login.");
            } else {
                NSLog(@"Uh oh. An error occurred: %@", error);
            }
        } else if (user.isNew) {
            NSLog(@"User with facebook signed up and logged in!");
        } else {
            NSLog(@"User with facebook logged in!");
        }
    }];
}

I have my facebook app all set and everything.

Any leads?

Best Answer

I had the same problem on my device. Same error.

Fix was simple: Settings -> Privacy -> Facebook -> and check your app status there.

Related Solutions

Ios – The operation couldn’t be completed. (com.facebook.sdk error 2.) ios6

This worked for me:

Go to the settings app of your iPhone.
Open your Facebook Settings
Scroll down to your app and make sure your app allows facebook interaction.

This could happen on any device, therefore in your app you will have to make sure to handle this error correctly. I reckon you give the user feedback why Login With Facebook failed and ask the user to check their Facebook settings on their device.

 - (void)facebookSessionStateChanged:(FBSession *)session state:(FBSessionState)state error:(NSError *)error
{
    switch (state) {
        case FBSessionStateOpen:
            // handle successful login here
        case FBSessionStateClosed:
        case FBSessionStateClosedLoginFailed:
            [FBSession.activeSession closeAndClearTokenInformation];

            if (error) {
                // handle error here, for example by showing an alert to the user
                UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Could not login with Facebook"
                                                                message:@"Facebook login failed. Please check your Facebook settings on your phone."
                                                               delegate:nil
                                                      cancelButtonTitle:@"OK"
                                                  otherButtonTitles:nil];
                [alert show];
            }
            break;
        default:
            break;
    }

Android – How to i get Image Resource ID and send it to other activity in Android

One way to do it is by modifying your getView() method of your adapter, so that it uses the ViewHolder pattern (Romain Guy's Google I/O 2009 presentation, look at 0:09:05).

In your view holder that you tag to the view, you can add field for the resource ID. When you get your selected view, find the view holder (view.getTag()) and get its ID field.

You can pass it to another Activity by using Intents.

You may have to use ContentProvider so that the second Activity has access to your chosen image. Keep in mind that, more often than not, the resources that are compiled in your .apk and have an ID are small, utility ones, because otherwise they bulk up your application, and most of the time, you can count on using the Internet to download images.

Of course, that's not always the case, but if you are simulating Internet resources with res/drawable resources, chances are, you'll face different problems.

Good luck.

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