QT compile error
<p>I was playing with a tiny QT 5.5.1 app under windows/mingw. Suddenly it stopped compile with a weird error like on the screenshot.</p>

<p>I tried to clean all, rebuild, run qmake. No results.</p>

<p>How to get rid of it?</p>

<p><a href="https://i.stack.imgur.com/S081l.jpg" rel="nofollow"><img src="https://i.stack.imgur.com/S081l.jpg" alt="q"></a></p>