title: Plugin with id 'maven' not found
body: <blockquote>
  <p>Plugin with id 'maven' not found.</p>
  </blockquote>
  <p>I got this error in IDEA that uses with 7.1, that is strange as <code>maven</code> is built-in plugin, and should be distributed with gradle.</p>
  <pre><code>subprojects {
      apply plugin: 'java'
      apply plugin: 'java-library'
      apply plugin: 'maven'
  </code></pre>
  <p>When running Gradle 6.3, it seems there is no such error.</p>