@Mark_Zheng Welcome to the Knime Forum.
You might want to start by reading the Python guide
https://docs.knime.com/latest/python_installation_guide/index.html
And then the.
https://docs.knime.com/latest/deep_learning_installation_guide/index.html
I have once tried to condense that into a short story, you might have to switch the versions to the current ones
It is about following the right combination of versions and sometime even the conda environments used seem to play a role. So you might have to experiment with channel priorities (might depend on your operating system)