Is there an error in the "Create Entity-Backed Records" tutorial? (

Is there an error in the "Create Entity-Backed Records" tutorial? (forum.appian.com/.../Records_Tutorial

I have gone through it twice, and get this error when I try to see the Record in Tempo:

Could Not Retrieve MGS Employees
The source of the data for “MGS Employee Directory” cannot be accessed. (APNX-1-4205-001)

(I added my initials to the file/entitynames to avoid duplicaiton with others in dev, but did not change the field names).

If I can't get the tutorial to work correctly, I'm unlikely to try to develop my own solutions.
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OriginalPostID-76491

OriginalPostID-76491