twitpic

I'm using FHSTwitterEngine to post a gif to twitpic. When I have a wifi or 3G connection on the iphone everything works fine. But I also want to implement some error handling for when there is no connection or when the upload failed. So for testing I put the iphone in airplane mode and try to upload to twitpic using the following method: id returned = [[FHSTwitterEngine sharedEngine] uploadImageToTwitPic:gif withMessage:@"message" twitPicAPIKey:@"key"]; but when I do that I immediately get the following error: Terminating app due to uncaught exception 'NSInvalidArgumentException', reason:

I tried to use GSTwitPicEngine class https://github.com/Gurpartap/GSTwitPicEngine for sharing image on twitter but its giving error As we have to set [twitpicEngine setAccessToken:token]; if I am right, I am using _accessToken of class SA_OAuthTwitterEngine as token _accessToken was private in class SA_OAuthTwitterEngine , I set it to public and also @property (nonatomic, readonly) OAToken *accessToken; @synthesize accessToken = _accessToken; and then in action twitPicEngine = [GSTwitPicEngine twitpicEngineWithDelegate:self]; [twitPicEngine setAccessToken:twitterObj.accessToken];

I have been working on an iPhone app that has a feature of uploading photos to TwitPic. I have it working with basic authentication. I am trying to get it working with OAuth. I am getting authentication errors. I have studied very carefully the TwitPic documentation. I am authorising the app by displaying a UI Web View and the it returns a PIN value. I enter the PIN value in the app and request the token. I am able to upload status updates to Twitter but not photos. My code is based on some example code from here: Example iPhone app using OAuth Here is my code: NSString *url = @"http://api