I am attempting to load the tutorial app into our Dev environment. I have loaded the app into Cerner powerchart using the prefmaint tool, but I get an error when I launch the application.
The initial error is "Unable to get property 'substr' of undefined or null reference
![1apiCapture.JPG](https://groups.google.com/group/cerner-fhir-developers/attach/21ab01f2019b4/1apiCapture.JPG?part=0.1&view=1)
After that the app does not return the expected patient data, it remains at the loading screen
![2apiCapture.JPG](https://groups.google.com/group/cerner-fhir-developers/attach/21ab01f2019b4/2apiCapture.JPG?part=0.2&view=1)
My idea, is to use the tutorial as a base, and modify the code from there. Is there any reason why this won't work. What am I missing or doing wrong here?
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