Xcode debugger not printing variables in some files : <p>I have an issue with the Xcode debugger. Everything works fine in general, I can print variables using <code>po &lt;var&gt;</code> normally... Except in some files, where I can't print anything, and I have a <code>error: Couldn't apply expression side effects : couldn't get the data for variable self</code>
 error in the console.</p>

<p><a href="https://i.stack.imgur.com/hbb3Q.png" rel="noreferrer"><img src="https://i.stack.imgur.com/hbb3Q.png" alt="Xcode debugger"></a></p>

<p>Weirdly, Xcode shows values correctly on the left debugger panel.</p>

<p>Does anyone have an idea?</p>

<p>Thanks!</p>
