<p dir="auto">When you hit <code class="notranslate">t</code> while looking at a complicated tree, e.g. the gallery pull-to-refresh screen, the tool times out and quits, even though information is flowing.</p>
<p dir="auto">Run the gallery, start the bottom app bar demo, type 't' at the console.</p>
<p dir="auto">After loads of output the app crashes:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="TimeoutException: Request to Dart VM Service timed out: ext.flutter.debugDumpRenderTree({isolateId: isolates/71568905})"><pre class="notranslate"><code class="notranslate">TimeoutException: Request to Dart VM Service timed out: ext.flutter.debugDumpRenderTree({isolateId: isolates/71568905})
</code></pre></div>