title: Use -removeDeferredKeyObserver: instead of -removeKeyObserver
body: <p>Can't find method with cause this log message.</p>
  
  <pre><code>2016-05-24 13:12:44.451 MYAPPNAME[33530:7289718] Use -removeDeferredKeyObserver: instead of -removeKeyObserver:
  </code></pre>
  
  <p>Any suggestion how to find method? Actually what is <code>[33530:7289718]</code> information.</p>
  
  <p>What I've tried:</p>
  
  <ol>
  <li>Search trough the project with key word <code>removeKeyObserver</code></li>
  <li>Search using this <a href="https://stackoverflow.com/questions/37391609/xcode-7-found-a-place-where-it-prints-a-line-with-a-log-error">answer</a></li>
  <li>I added breakpoints everywhere in the project where I <code>removeObserver</code>. Note. I searched removeObserver because I have not found <code>removeKeyObserver</code> word. I tried to debug it and seems it's connected to some classes where we use PHLivePhoto. But I have not found the line which call <code>removeKeyObserver</code>
  
  <ol start="4">
  <li>Also there is not a lot links in the web regarding this log. I found one more <a href="https://stackoverflow.com/questions/37252524/is-it-possible-to-use-a-force-touch-3d-touch-with-the-standard-controller-uiim">topic</a> where we can see the same log.</li>
  </ol></li>
  </ol>
  
  <p>Also I have MBProgressHud and seems there are also some related calls.</p>
  
  <p>Also I found some maybe helpful <a href="https://stackoverflow.com/questions/7270502/how-to-log-all-methods-used-in-ios-app">link</a> that I can use to set debug breakpoint. How can I specify breakpoint using <code>removeKeyObserver</code></p>