Process 101 Build Application Step 9 Not Working

I have followed the document as described but getting the following error when running in debug mode:


  

Even the sample application provided has the same issue. My Interface is configured as follows:

Up to this exercise everything seems to have worked as expected. I tried changing the rule input in the interface to Vehicle which resulted in a lot more error messages. I deleted the process model and generated a new "Create" process model automatically.

Any help to get working would be greatly appreciated.

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