Thanks to a recent post in our forums requesting help, I figured out that our video tutorial is a little out of sync regarding the Bundle.xml syntax. The same is true for the friendly created video transcript.
In fact, the video tutorial was created with the first released version 0.2 of Empinia. Since then, we have changed especially the XML definitions to support XLIFF -based translation. Also, we have no longer included the DemoApplication that is used to start the Workbench.