Problem with updating profile pic.

[sweetie85]

Hi,

I am using the following code to update profile pic:

• (NSString *)setBackgroundimage:(NSString *)imageurl{

  if (!imageurl) {
  return nil;
  }

  NSString *path = [NSString stringWithFormat:@"account/update_profile_image.%@", API_FORMAT];

  imageurl = [imageurl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
  NSString *trimmedLocation = imageurl;

  NSMutableDictionary *params = [NSMutableDictionary dictionaryWithCapacity:0];
  [params setObject:trimmedLocation forKey:@"profile_image_url"];
  NSString *body = [self _queryStringWithBase:nil parameters:params prefixed:NO];

  return [self _sendRequestWithMethod:HTTP_POST_METHOD path:path
  queryParameters:params body:body
  requestType:MGTwitterAccountLocationRequest
  responseType:MGTwitterUser];
  }

where url is the url to the image. When I ma trying to use the above code to update profile pic. I get the following error:
Error Message:Request 6397A72F-BF61-42B7-8B50-BA7F62CBFEC4 failed with error: Error Domain=HTTP Code=500

Any help is appreciated.

Thanks.