title: CLion/PyCharm/PHPStorm/IntelliJ won't start, says "IDE has not been initialized yet"
body: <p>When I try to start my CLion IDE (or another JetBrains IDE, like PyCharm, IntelliJ IDEA, PHP Storm etc), it fails, and I get the following message on the console:</p>
  <pre><code>IDE has not been initialized yet
  </code></pre>
  <p>(after the usual JVM warning I always get before and didn't prevent the IDE from starting up.)</p>
  <p>Why is this happening? What can I do about it?</p>
  <p>Notes:</p>
  <ul>
  <li>I have a valid license.</li>
  <li>May be related to <a href="https://youtrack.jetbrains.com/issue/IDEA-233272" rel="noreferrer">this (resolved) issue</a> for IntelliJ Idea.</li>
  </ul>