Extension page doesn't have any extensions

[repomorphic]

I have installed jupyter_nbextensions_configurator with the following command: conda install -c conda-forge jupyter_nbextensions_configurator

But nbextensions configuration interface page doesn't have any extensions.My nbextensions configuration interface like this: https://i.imgur.com/psMsajy.png

I tried to enable "jupyter-tree-filter" extension.I got following output:

C:\Users\q>jupyter nbextension enable jupyter-tree-filter Enabling notebook extension jupyter-tree-filter... -Validating: problems found: -require? X jupyter-tree-filter

Edit 1: I install with git clone and now it works.

git clone https://github.com/ipython-contrib/jupyter_contrib_nbextensions.git pip install -e jupyter_contrib_nbextensions jupyter contrib nbextension install --user

Probably there is an issue about conda packages.

[BreitA]

Same issue here

Not working through conda but working like a charm with pip

[sinancetinkaya]

Same. Spent 4 hours to fix this and finally saw @repomorphic 's answer. Thank you!