az cli throws Unable to load extension 'aks-preview: cannot import name 'SDKProfile'

[ramkrish86]

This is autogenerated. Please review and update as needed.

In my version of az cli I get the following error

Unable to load extension 'aks-preview: cannot import name 'SDKProfile'

az upgrade
Unknown

Errors:

az: 'upgrade' is not in the 'az' command group. See 'az --help'. If the command is from an extension, please make sure the corresponding extension is installed. To learn more about extensions, please visit https://docs.microsoft.com/en-us/cli/azure/azure-cli-extensions-overview

To Reproduce:

Steps to reproduce the behavior. Note that argument values have been redacted, as they may contain sensitive information.

• Put any pre-requisite steps here...
• az upgrade --debug

Expected Behavior

Environment Summary

Windows-10-10.0.19041-SP0
Python 3.6.6
Installer: MSI

azure-cli 2.8.0

Extensions:
aks-preview 0.5.34

Additional Context

[yonzhan]

upgrade