title: Can't use AFHTTPRequestOperationManager
body: <p>I got a problem when I'm using AFNetworking. I wrote this in my code:</p>
  
  <pre><code>AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
  </code></pre>
  
  <p>I do add those files in my project, and I also try pod them into my project<a href="http://i.stack.imgur.com/BaIG0.png"> like this</a>. But the compiler still told me "use of undeclared identifier 'AFHTTPRequestOperationManager'". Someone can help me?</p>
  
  <p>screenshot:<a href="http://i.stack.imgur.com/l3KNh.png">screenshot</a></p>