Doing the ‘hands-on’ for Data Engineer Basics - “Learn to Use the Cognite Python SDK “ Course."
I am down to adding labels to assets.

The code fails at the last line above with the error:
CogniteAPIError: Type definitions deleted: {externalId: cold-countries}. | code: 400 | X-Request-ID: 50b63199-cac6-9ab3-99ac-3b6ac768ecce

Please can someone explain:
- what does this error mean?
- what can be done to eliminate the error
Thank you.
Doug