creation of endpoint of the provided example fails with sagemaker_containers._errors.ImportModuleError

Hello,

Following the tutorial for SM Studio with the example from the SM studio folder I keep getting an error when I try to create to an endpoint. This is indicated by status "fail" for the endpoint.
I can see a error message from the SM dashboard:
"The primary container for production variant default-variant-name did not pass the ping health check. Please check CloudWatch logs for this endpoint."

And then in ClouldWatch I see a line with an error message:

sagemaker_containers._errors.ImportModuleError: 'NoneType' object has no attribute 'startswith'

Start with the example in the SM Studio folder and reproduce endpoint creation, then inspect the SageMaker dashboard status and the CloudWatch logs. Trace the sagemaker_containers._errors.ImportModuleError and determine what change makes the production container pass its ping health check.

Written by the indexing model from the issue text.