Hi Denis! I just tried it out and only see that error if I don’t restart the runtime after the install. After running the pip install cell, please click Runtime > Restart Runtime and then run the next cell (i.e. imports). The problem goes away for me after that.
As also stated in the note after installation, you can ignore the errors about version incompatibility of some of the bundled packages.
I also remember from one previous experience: my Colab runtime was reset for no apparent reason, and I had to reinstall the packages again. That might have happened to you that’s why the restart didn’t work as expected. It rarely happens though so you can expect it to work normally moving forward.
Hope this helps!