title: iOS app crashes when set UITextfield delegates
body: <p>I dont know why the iPhone app crashes and it gives lldb error only.I tried to add the exception break point too.</p>
  
  <p>.h file:</p>
  
  <pre><code> IBOutlet UITextField *etCountry;
  </code></pre>
  
  <p>.m file:</p>
  
  <pre><code>etCountry.delegate=self;///
  </code></pre>
  
  <p>This is the line i am getting the crash.Please give me the solution for me</p>
  
  <p><img src="https://i.stack.imgur.com/wbvZ6.png" alt="enter image description here"></p>