title: Android studio error After run the project
body: <p>I am getting following error while trying to run my app from android studio</p>
  
  <p><code>Execution failed for task ':app:compileDebugJava'. Cannot find System Java Compiler. Ensure that you have installed a JDK (not just a JRE) and configured your JAVA_HOME system variable to point to the according directory</code>.</p>
  
  <p>After searching on internet, I found some solution like this </p>
  
  <pre><code>export JAVA_HOME=/usr/lib/jvm/jdk1.7.0_45/ 
  </code></pre>
  
  <p>so i gave this command in terminal from android studio dirctory but its not workout it show the same error again.</p>