title: Resource nexus-maven-repository-index.properties does not exist in IntelliJ
body: <p>While experimenting with Grails 3 under IntelliJ I found the following warning:</p>
  
  <pre><code> Unindexed remote maven repositories found. Disable...
   The following repositories used in your gradle projects were not indexed yet: 
   https://repo.grails.org/grails/core
   If you want to use dependency completion for these repositories artifacts,
   Open Repositories List, select required repositories and press "Update" button (show balloon)
  </code></pre>
  
  <p>If I am trying to resolve an issue, I get next error:</p>
  
  <pre><code>FileNotFoundException: Resource nexus-maven-repository-index.properties does not exist in IntelliJ
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/b31lZ.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/b31lZ.jpg" alt="enter image description here"></a></p>
  
  <p>I would prefer to know, what does it mean? If repository is marked as "remote", then why the problem is absence of some (local?) file?</p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>I think this is not related with Grails actually.</p>
  
  <p>How to know more details on error, occurring in <code>Indexed Maven Repositories</code> Window in IntelliJ on <code>Update</code> button?</p>
  
  <p>The popup message says</p>
  
  <p><code>Resource nexus-maven-repository-index.properties does not exist in IntelliJ</code></p>
  
  <p><a href="https://i.stack.imgur.com/l5GbG.png" rel="noreferrer"><img src="https://i.stack.imgur.com/l5GbG.png" alt="enter image description here"></a></p>