title: assembleDebug not working with Gradle2.4 in Android Studio
body: <p>I recently updated <code>gradle-wrapper.properties</code> file to use gradle-2.4.<br>
  Here is my new updated <code>gradle-wrapper.properties</code> file:</p>
  
  <pre><code>#Sun Dec 21 21:28:27 GMT+05:30 2014
  distributionBase=GRADLE_USER_HOME
  distributionPath=wrapper/dists
  zipStoreBase=GRADLE_USER_HOME
  zipStorePath=wrapper/dists
  distributionUrl=https\://services.gradle.org/distributions/gradle-2.4-all.zip
  </code></pre>
  
  <p>After this update I ran the clean command so that it used 2.4 and 2.2.1 (the older version).</p>
  
  <p>Now, if I use <code>./gradlew assembleDebug</code> command in Android studio, it throws the following error:  </p>
  
  <pre><code>FAILURE: Build failed with an exception.
  
  * What went wrong:
  Execution failed for task ':ActiveAndroid:compileDebugTestAidl'.
  &gt; Executor Singleton not started
  
  * Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
  </code></pre>
  
  <p>But if I run the same command on command line, it works.<br>
  Any idea what could be wrong?</p>