Cannot upload a photo on device

[Kelvin-Hu]

• (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

  [TMAPIClient sharedInstance].OAuthConsumerKey = @".....";
  [TMAPIClient sharedInstance].OAuthConsumerSecret = @".....";

  return YES;
  }

-(void)postPhoto {
[[TMAPIClient sharedInstance] authenticate:@"photopostexample" callback:^(NSError *error) {
if (error)
NSLog(@"Authentication failed: %@ %@", error, [error description]);
else {
NSLog(@"Authentication successful!");

        [[TMAPIClient sharedInstance] photo:@"kelvinhu.tumblr.com"
                              filePathArray:@[[[NSBundle mainBundle] pathForResource:@"blue" ofType:@"png"]]
                           contentTypeArray:@[@"image/png"]
                              fileNameArray:@[@"blue.png"]
                                 parameters:@{@"caption" : @"Caption"}
                                   callback:^(id response, NSError *error) {
                                       if (error)
                                           NSLog(@"Error posting to Tumblr");
                                       else
                                           NSLog(@"Posted to Tumblr");
                                   }];
    }
}];

}

this code can run on the simulator successfully. but when I run it on the device, the error code 400 was showed, and cannot upload the photo.
Waiting for the answer.Thanks a lot.

[irace]

Not sure but this doesn't sound like an SDK bug. Sounds like the response that I would expect the server to return if blue.png doesn't actually exist in the bundle.

I'd recommend using Charles Proxy to inspect the outgoing HTTP request that you're sending. If it's actually populated with image data and you're still getting a 400, it could be some problem with that image specifically.

[ykws]

Now simulator has a same error. #113