ImportError for FeathrClient

[wmpauli]

I received the following ImportError message when importing FeathrClient inside Jupyter Notebook:

ImportError: cannot import name 'CaseInsensitiveEnumMeta' from 'azure.core' (c:\users\wopauli\miniconda3\lib\site-packages\azure\core\__init__.py)

I was able to fix this by update azure-core (pip install -U pip, then pip install -U azure-core) and restarting the kernel.

I had just installed feathr inside the notebook (w/o updating pip first). It seems like the version number of the dependency azure-core has to be pinned during installation of feathr.