jit-grunt: Plugin for the "clean" task not found?
<p>when i run grunt build i got this error, any idea how can i resolve this issue ?</p>

<p>grunt build</p>

<pre><code>Running "concurrent:dist" (concurrent) task
    Warning: 
    jit-grunt: Plugin for the "compass" task not found.
    If you have installed the plugin already, please setting the static mapping.
    See https://github.com/shootaroo/jit-grunt#static-mappings

    Warning: Task "compass:dist" failed. Use --force to continue.

    Aborted due to warnings.
</code></pre>

<p>Gruntfile.js</p>

<pre><code>  require('jit-grunt')(grunt, {
    express: 'grunt-express-server',
    useminPrepare: 'grunt-usemin',
    ngtemplates: 'grunt-angular-templates',
    cdnify: 'grunt-google-cdn',
    protractor: 'grunt-protractor-runner',
    buildcontrol: 'grunt-build-control',
    istanbul_check_coverage: 'grunt-mocha-istanbul',
    ngconstant: 'grunt-ng-constant'
  });
</code></pre>