Jupyter is not opening

Notebook
,
2

Do you remember what library you installed? By looking at paths in the traceback, it seems that you may have two conflicting installations of markupsafe: one in Anaconda3 environment, and one in AppData\Roaming. It could be a result of mixing up conda install and pip install. Could you please:

  1. provide conda list and pip list
    2 . try running pip uninstall markupsafe and checking if Jupyter now works?

Note: also seen in Jupyter Notebook Launch Error