title: Searching for inspections failed: undefined method `map' for nil:NilClass
body: <p>I'm trying to update my cordova project to cordova-ios 6.1.0. Also cordova-plugin-firebasex (10.1.2) exists in the project. When I write <code>cordova platform add ios@6.1.0</code>, I get this error (picture).</p>
  <p>How can I fix it?<a href="https://i.stack.imgur.com/8FFUu.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/8FFUu.jpg" alt="enter image description here" /></a></p>