Installation of Jupyter and running Jupyter notebook

Hi guys! So I installed Jupyter notebook and it apparently got installed successfully on the command prompt but whenever I try running jupyter-notebook, I get the following error messages.


What could the errors be and how should I fix it?

Btw, I also got these warnings during the pip installation of Jupyter.

It is jupyter notebook, there is no hypen in between them, Try it again.

I hope I’ve cleared your doubt. I ask you to please rate your experience here
Your feedback is very important. It helps us improve our platform and hence provide you
the learning experience you deserve.

On the off chance, you still have some questions or not find the answers satisfactory, you may reopen
the doubt.