encounter ModuleNotFoundError: No module named 'tensorboard' when running in Conda virtual environment

[JKYang01]

I use anaconda to manage the virtual environment and run the package to avoid package conflicts
then I encountered the module not fund error.
I checked with pip list and found the package is installed.
that means the package tensorboard installed but could not be found by conda
later I figured out it needs to run the additional commands if running the script under conda virtual environment
$ conda install -c conda-forge tensorboard==2.4.1
$ conda install -y -c conda-forge protobuf==3.14.0

Reference:
https://stackoverflow.com/questions/61320572/modulenotfounderror-no-module-named-tensorboard
https://stackoverflow.com/questions/58686400/can-not-get-pytorch-working-with-tensorboard