title: What is the fix for this normalizeAndCheck(UnixPath.java) NullPointerException on Gradle sync?
body: <p>I recently upgraded from Android Studio from 3.0 alpha to 3.0 beta and this error started occurring on Gradle sync. How do I fix this?</p>
  
  <pre><code>Gradle sync failed: Cause: java.lang.NullPointerException
              at sun.nio.fs.UnixPath.normalizeAndCheck(UnixPath.java:77)
              at sun.nio.fs.UnixPath.&lt;init&gt;(UnixPath.java:71)
              at sun.nio.fs.UnixFileSystem.getPath(UnixFileSystem.java:281)
  </code></pre>