Only two extensions available after installing

[MaxGhenis]

I'm on Ubuntu (ChromeOS via crouton) and installed via conda after a fresh install of conda, Jupyter, and IRkernel. But I'm only seeing two available extensions.

Here's some of my installation output, where I tried restarting the Jupyter kernel a couple times after updating conda.

[jcb91]

So the configurator itself provides the two nbextensions you're seeing I'm the interface. Just to double-check, you also installed some other nbextensions which you're hoping to see as well? Perhaps the jupyter_contrib_nbextensions collection? If you're after that, and they're not showing up, I assume you installed the contrib collection with conda as well, in which case this is presumably caused by a failure in the conda post-link script, which is supposed to copy the js & CSS from the python site-packages directory into the jupyter sys-prefix (env-specific) data directory.

To fix, you could try conda uninstall and then reinstall of the contrib nbextensions package. Alternatively, if it's definitely installed (or if you installed it using pip rather than conda), you could try to re-run the sommand to copy js & css. With the relevant conda environment activated (that's the one from which you will run jupyter notebook, not any environment you may you for kernels), you can use

jupyter contrib nbextension install --sys-prefix

To copy everything over. Add the --debug flag for extra output (a lot). Since you're on *nix, you could also add the --symlink flag if you fancy.

If you could reply with anything you discover, that'd be great. This kind of issue seems to keep coming up, but so far I haven't seen any obvious cause...

[jcb91]

Apologies, after reading the output in the gist, it looks like the problem here is (possibly) just some mixup of the two packages jupyter_nbextensions_configurator (this one, which provides config UIs for nbextensions, but doesn't really provide any nbextensions beyond its own interface), and jupyter_contrib_nbextensions, which provides a collection of a whole bunch of nbextensions, and uses this package as a dependency to provide a neat way to configure them. Potentially, your fix may be as simple as

conda install -c conda-forge jupyter_contrib_nbextensions

Apologies for the confusion, it's far from obvious to people looking at this for the first time!

[MaxGhenis]

Ah sorry, yes I thought this also installed the extensions. This worked. Thank you!

conda install -c conda-forge jupyter_contrib_nbextensions

[mercy-git]

I tried it: conda install -c conda-forge jupyter_contrib_nbextensions
But only one extra extension got added. Everything didn't get added. What to do?

[rborooah]

I tried it: conda install -c conda-forge jupyter_contrib_nbextensions But only one extra extension got added. Everything didn't get added. What to do?

Same here. I have the same problem. These are the only ones I have:

Highlight selected word
jupyter-js-widgets/extension
jupyterlab-plotly/extension
Nbextensions dashboard tab
Nbextensions edit menu item

[jhuang2023]

I got the same problem. I did conda install -c conda-forge jupyter_nbextensions_configurator and then conda install -c conda-forge jupyter_contrib_nbextensions. But I only got a few extensions.

[ChenglongMa]

I installed the package via conda install -c conda-forge jupyter_contrib_nbextensions, but just saw a few extensions.

Rerunning the following command manually solves the problem.

jupyter contrib nbextension install --sys-prefix