Navigator Error

[HadrienMarcellin]

Main error

Application notebook launch may have produced errors.

Traceback

[W 19:09:25.830 NotebookApp] Error loading server extension jupyter_nbextensions_configurator
    Traceback (most recent call last):
      File "C:\Users\Hadrien\Anaconda3\lib\site-packages\notebook\notebookapp.py", line 1271, in init_server_extensions
        mod = importlib.import_module(modulename)
      File "C:\Users\Hadrien\Anaconda3\lib\importlib\__init__.py", line 126, in import_module
        return _bootstrap._gcd_import(name[level:], package, level)
      File "<frozen importlib._bootstrap>", line 978, in _gcd_import
      File "<frozen importlib._bootstrap>", line 961, in _find_and_load
      File "<frozen importlib._bootstrap>", line 948, in _find_and_load_unlocked
    ModuleNotFoundError: No module named 'jupyter_nbextensions_configurator'
[I 19:09:25.972 NotebookApp] Serving notebooks from local directory: C:\Users\Hadrien
[I 19:09:25.972 NotebookApp] 0 active kernels 
[I 19:09:25.972 NotebookApp] The Jupyter Notebook is running at: http://localhost:8888/?token=9a210dae9d658146f231e8a47168b938d607d4fecdaf541d
[I 19:09:25.972 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 19:09:26.029 NotebookApp] 
    
    Copy/paste this URL into your browser when you connect for the first time,
    to login with a token:
        http://localhost:8888/?token=9a210dae9d658146f231e8a47168b938d607d4fecdaf541d
[I 19:09:29.236 NotebookApp] Accepting one-time-token-authenticated connection from ::1
[W 19:09:33.169 NotebookApp] 404 GET /nbextensions/nbextensions_configurator/tree_tab/main.js?

[goanpeca]

See ipython-contrib/jupyter_contrib_nbextensions#653