title: Running Ant Build.xml getting: Java Virtual Machine Launcher: Could not find the main class. Program will exit
body: <p>I am writing my code in eclipse, the code is running fine but when I try to build it in ant by running <code>build.xml</code>. I am getting<br> </p>
  
  <pre><code>Java Virtual Machine Launcher: Could not find the main class. Program will exit.
  </code></pre>
  
  <p>Any suggestions?</p>