title: How to trap on UIViewAlertForUnsatisfiableConstraints?
body: <p>I'm seeing an error appear in my debugger log:</p>
  
  <pre class="lang-none prettyprint-override"><code>Will attempt to recover by breaking constraint 
  &lt;NSLayoutConstraint:0x191f0920 H:[MPKnockoutButton:0x17a876b0]-(34)-[MPDetailSlider:0x17a8bc50](LTR)&gt;
  
  Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
  The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in &lt;UIKit/UIView.h&gt; may also be helpful.
  </code></pre>
  
  <p>How do I trap on that call? It does not appear anywhere in my code.</p>
  
  <p><a href="https://i.stack.imgur.com/jBZdJ.png" rel="noreferrer"><img src="https://i.stack.imgur.com/jBZdJ.png" alt="Screenshot1"></a></p>