title: "Request failed: unacceptable content-type: text/html" using AFNetworking 2.0
body: <p>I am trying below code but it gives error:</p>
  
  <pre><code>{    
   NSURL *url = [NSURL URLWithString:@"http://ielmo.xtreemhost.com/array.php"];    
   NSURLRequest *urlRequest =[[NSURLRequest alloc]initWithURL:url];    
   AFHTTPRequestOperation *requestOperation = [[AFHTTPRequestOperation alloc] initWithRequest:urlRequest];    
   requestOperation.responseSerializer = [AFImageResponseSerializer serializer];    
   [requestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
          NSLog(@"Response: %@", responseObject);
          _imV.image = responseObject;
  
      } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
          NSLog(@"Image error: %@", error);
      }];
      [requestOperation start];
  }
  </code></pre>
  
  <p>Please help on me on <code>"Request failed: unacceptable content-type: text/html"</code> error.</p>