title: java.lang.IllegalStateException: Cannot change the location once it is set
body: <p>Whenever I am trying to start my application(Eclipse based) it is giving me following error</p>
  
  <pre><code>java.lang.IllegalStateException: Cannot change the location once it is set.
      at org.eclipse.core.runtime.internal.adaptor.BasicLocation.set(BasicLocation.java:142)
      at org.eclipse.core.runtime.internal.adaptor.BasicLocation.set(BasicLocation.java:137)
      at com.fiorano.studio.fmq.rcp.Application.start(Application.java:90)
      at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
      at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
      at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
      at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
      at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:601)
      at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
      at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
      at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
      at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
  </code></pre>
  
  <p>It is asking me for workspace. When I select one and do 'ok'. It simply closes and throws above exception. I googled it but not much documentation. Has anyone encountered this problem before? </p>