title: Groovy: compiler mismatch after installation
body: <p>I am using <code>grails 2.3.4</code>  with the <code>eclipse grails plugin(GGTS)</code>. However, after installation I created a project and got:</p>
  
  <pre><code>  Description   Resource    Path    Location    Type
      Groovy: compiler mismatch Project level is: 2.1 Workspace level is 1.8
      Groovy compiler level expected by the project does not match workspace compiler level. 
      Go to Project properties -&gt; Groovy compiler to set the Groovy compiler level for this project   test        test    Groovy compiler mismatch problem
  </code></pre>
  
  <p>I tried to change the compiler preferences but nothing changes...</p>
  
  <p><img src="https://i.stack.imgur.com/AyXft.jpg" alt="enter image description here"></p>
  
  <p>I really appreciate your answer!</p>