hi @sanimesa
Welcome to the community.
Some packages might be attached in the course platform.
If you trying to running on your own environment, you have to download all the files related to the course in order to get it work.
For example:
You might be able to access all the stored files by clicking on the jupyter logo at the top-left.
This example above is from another course. Just take as a reference
I hope this help
Best regards
elirod