title: The ECLIPSE RCP project could not be exported successfully
body: <p>I met an error when I exported the Eclipse Product using the export wizard on the overview tab of the .product file , 
  the error message is as below . 
  but it worked just fine when I ran it from inside of Eclipse as an Eclipse Application.
  can anybody provide some idea about this .                                                                                                                                                                             </p>
  
  <pre><code>C:\workSpace\0709\.metadata\.plugins\org.eclipse.pde.core\temp\org.eclipse.pde.container.feature\package.org.eclipse.pde.container.feature.win32.win32.x86_64.xml:90: The following error occurred while executing this line:
  C:\workSpace\0709\.metadata\.plugins\org.eclipse.pde.core\temp\org.eclipse.pde.container.feature\package.org.eclipse.pde.container.feature.win32.win32.x86_64.xml:1140: The following error occurred while executing this line:
  C:\tool\eclipse-standard-kepler-SR2-win32-x86_64\eclipse\plugins\org.eclipse.pde.build_3.8.100.v20130514-1028\scripts\genericTargets.xml:243: A problem occured while invoking the director.
  </code></pre>
  
  <p>Thanks &amp; Regards,
  Jeff</p>