Cant able to launch Jupter notebook

I installed anaconda3 and launched Jupyter notebook from Anaconda Navigator. But Jupyter Notebook is not launching and throwing me the error message.

Traceback (most recent call last):
File “C:\Users<mysystemusername>\AppData\Local\anaconda3\Scripts\”, line 6, in
from notebook.notebookapp import main
ModuleNotFoundError: No module named ‘notebook.notebookapp’

I have tried uninstalling and re-installing again, still displaying the same error message. much appreciate if someone can help me with this issue

I am facing same error,I tried every method but none works,please if anybody know about this help

This is due to a change in module structure with jupyter notebook version 7. Downgrading the notebook version to 6.5 worked for me.
Maybe this can work
pip3 install notebook==6.5.5