"Error retrieving template 'Template is not available for api version == 2022-06-30-preview'. Please try again later." when running validate-messages

[scout208]

When running the validate-messages command, I'm getting the error "Error retrieving template 'Template is not available for api version == 2022-06-30-preview'. Please try again later.".

[yang-hai-feng]

@scout208 would you please share your application id, so I can take a look?

[scout208]

@yang-hai-feng, sure. The application id is ef0c7748-eaf7-4749-b24f-b810882ebbd6

[yang-hai-feng]

@scout208 do you have a device template associated with your device? from the error information, it seems your don't have template associated with the device.

[scout208]

@yang-hai-feng Yes, I do have a device template associated with my device. I'm not sure why I'm getting this error. Running the command with the --debug flag show the actual API endpoint being used and when I run it in Postman it is able to get the device template.

[yang-hai-feng]

Thanks @scout208 for the details, looks like a bug from CLI extension code, I will investigate and get back to you.

[scout208]

@yang-hai-feng I've narrowed the problem down to this block of code

azure-iot-cli-extension/azext_iot/central/models/v2022_06_30_preview/template.py

Lines 94 to 103 in a42f57a

	if components:
	component_schema_names = self._extract_schema_names(components)
	modules.append({
	'id': id,
	'interfaces': interfaces,
	'schema_names': schema_names,
	'components': components,
	'component_schema_names': component_schema_names
	})

In my template there are no components, which means that component_schema_names is never getting assigned so it is throwing an error when trying to append it to the modules list.

I fixed it on my machine by changing the block to this

component_schema_names = []
if components:
    component_schema_names = self._extract_schema_names(components)


modules.append({
    'id': id,
    'interfaces': interfaces,
    'schema_names': schema_names,
    'components': components,
    'component_schema_names': component_schema_names
})

and it was able to get my device template successfully.

[yang-hai-feng]

@scout208 , thanks for your investigation, that was fantastic, we will include the fixes for next releases, appreciated for your help to identify this issue.