bundles/org.eclipse.emf.ecp.view.stack.viewmodel/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin>
   <extension
         point="org.eclipse.emf.ecp.view.model.provider.xmi.file">
      <file
            filePath="viewmodel/StackLayout.view">
      </file>
   </extension>

</plugin>