Jupyter nbextensions doesn´t appear - 404 GET /static/components/marked/lib/marked.js

Question

Steps done

After introduce the next commands.

conda create -n dsenv python=3.10

conda activate dsenv

pip install jupyter

pip install jupyter-contrib-nbextensions==0.5.1

jupyter contrib nbextension install --user

Everything went well.

But when i enter the next command jupyter notebook, appears jupyter notebook webpage http://localhost:8888/tree but the tab of nbextensions doesn´t appears.

Jupyter Notebook WebPage Capture

The console give a error message: 404 GET /static/components/marked/lib/marked.js?v=20230223000607 (::1) 15.950000ms referer=http://localhost:8888/tree

Environment specifications

My Operative System (OS): Windows 10

Shell used: Anaconda Prompt

My list of libraries installed are:

anyio                     3.6.2                    pypi_0    pypi
argon2-cffi               21.3.0                   pypi_0    pypi
argon2-cffi-bindings      21.2.0                   pypi_0    pypi
arrow                     1.2.3                    pypi_0    pypi
asttokens                 2.2.1                    pypi_0    pypi
attrs                     22.2.0                   pypi_0    pypi
backcall                  0.2.0                    pypi_0    pypi
beautifulsoup4            4.11.2                   pypi_0    pypi
bleach                    6.0.0                    pypi_0    pypi
bzip2                     1.0.8                he774522_0
ca-certificates           2023.01.10           haa95532_0
certifi                   2022.12.7       py310haa95532_0
cffi                      1.15.1                   pypi_0    pypi
colorama                  0.4.6                    pypi_0    pypi
comm                      0.1.2                    pypi_0    pypi
debugpy                   1.6.6                    pypi_0    pypi
decorator                 5.1.1                    pypi_0    pypi
defusedxml                0.7.1                    pypi_0    pypi
executing                 1.2.0                    pypi_0    pypi
fastjsonschema            2.16.2                   pypi_0    pypi
fqdn                      1.5.1                    pypi_0    pypi
idna                      3.4                      pypi_0    pypi
ipykernel                 6.21.2                   pypi_0    pypi
ipython                   8.10.0                   pypi_0    pypi
ipython-genutils          0.2.0                    pypi_0    pypi
ipywidgets                8.0.4                    pypi_0    pypi
isoduration               20.11.0                  pypi_0    pypi
jedi                      0.18.2                   pypi_0    pypi
jinja2                    3.1.2                    pypi_0    pypi
jsonpointer               2.3                      pypi_0    pypi
jsonschema                4.17.3                   pypi_0    pypi
jupyter                   1.0.0                    pypi_0    pypi
jupyter-client            8.0.3                    pypi_0    pypi
jupyter-console           6.6.1                    pypi_0    pypi
jupyter-contrib-core      0.4.2                    pypi_0    pypi
jupyter-contrib-nbextensions 0.5.1                    pypi_0    pypi
jupyter-core              5.2.0                    pypi_0    pypi
jupyter-events            0.6.3                    pypi_0    pypi
jupyter-highlight-selected-word 0.2.0                    pypi_0    pypi
jupyter-latex-envs        1.4.6                    pypi_0    pypi
jupyter-nbextensions-configurator 0.6.1                    pypi_0    pypi
jupyter-server            2.3.0                    pypi_0    pypi
jupyter-server-terminals  0.4.4                    pypi_0    pypi
jupyterlab-pygments       0.2.2                    pypi_0    pypi
jupyterlab-widgets        3.0.5                    pypi_0    pypi
libffi                    3.4.2                hd77b12b_6
lxml                      4.9.2                    pypi_0    pypi
markupsafe                2.1.2                    pypi_0    pypi
matplotlib-inline         0.1.6                    pypi_0    pypi
mistune                   2.0.5                    pypi_0    pypi
nbclassic                 0.5.2                    pypi_0    pypi
nbclient                  0.7.2                    pypi_0    pypi
nbconvert                 7.2.9                    pypi_0    pypi
nbformat                  5.7.3                    pypi_0    pypi
nest-asyncio              1.5.6                    pypi_0    pypi
notebook                  6.5.2                    pypi_0    pypi
notebook-shim             0.2.2                    pypi_0    pypi
openssl                   1.1.1t               h2bbff1b_0
packaging                 23.0                     pypi_0    pypi
pandocfilters             1.5.0                    pypi_0    pypi
parso                     0.8.3                    pypi_0    pypi
pickleshare               0.7.5                    pypi_0    pypi
pip                       22.3.1          py310haa95532_0
platformdirs              3.0.0                    pypi_0    pypi
prometheus-client         0.16.0                   pypi_0    pypi
prompt-toolkit            3.0.37                   pypi_0    pypi
psutil                    5.9.4                    pypi_0    pypi
pure-eval                 0.2.2                    pypi_0    pypi
pycparser                 2.21                     pypi_0    pypi
pygments                  2.14.0                   pypi_0    pypi
pyrsistent                0.19.3                   pypi_0    pypi
python                    3.10.9               h966fe2a_0
python-dateutil           2.8.2                    pypi_0    pypi
python-json-logger        2.0.7                    pypi_0    pypi
pywin32                   305                      pypi_0    pypi
pywinpty                  2.0.10                   pypi_0    pypi
pyyaml                    6.0                      pypi_0    pypi
pyzmq                     25.0.0                   pypi_0    pypi
qtconsole                 5.4.0                    pypi_0    pypi
qtpy                      2.3.0                    pypi_0    pypi
rfc3339-validator         0.1.4                    pypi_0    pypi
rfc3986-validator         0.1.1                    pypi_0    pypi
send2trash                1.8.0                    pypi_0    pypi
setuptools                65.6.3          py310haa95532_0
six                       1.16.0                   pypi_0    pypi
sniffio                   1.3.0                    pypi_0    pypi
soupsieve                 2.4                      pypi_0    pypi
sqlite                    3.40.1               h2bbff1b_0
stack-data                0.6.2                    pypi_0    pypi
terminado                 0.17.1                   pypi_0    pypi
tinycss2                  1.2.1                    pypi_0    pypi
tk                        8.6.12               h2bbff1b_0
tornado                   6.2                      pypi_0    pypi
traitlets                 5.9.0                    pypi_0    pypi
tzdata                    2022g                h04d1e81_0
uri-template              1.2.0                    pypi_0    pypi
vc                        14.2                 h21ff451_1
vs2015_runtime            14.27.29016          h5e58377_2
wcwidth                   0.2.6                    pypi_0    pypi
webcolors                 1.12                     pypi_0    pypi
webencodings              0.5.1                    pypi_0    pypi
websocket-client          1.5.1                    pypi_0    pypi
wheel                     0.38.4          py310haa95532_0
widgetsnbextension        4.0.5                    pypi_0    pypi
wincertstore              0.2             py310haa95532_2
xz                        5.2.10               h8cc25b3_1
zlib                      1.2.13               h8cc25b3_0

Answer 1

The problem is related with the new updates of notebook, it gives problems with ".js" files that get lost with the update.

The solution is to get back to previous version:

In my case it was get back to 6.1.5 but in another cases it would be get to another previous version

pip install notebook==6.1.5

The users that has more compability problems they would use next one:

pip install notebook==5.7.10

It is better to use pip install than conda command, because conda produce compability problems in many cases with dependences packages

Answer 2

I encountered the same error in the network console of the browser.

Here is how I worked this around:

1. In the anaconda310 directory, type find . -name render.js, then I found two render.js ./share/jupyter/nbextensions/nbextensions_configurator/render/render.js ./lib/python3.10/site-packages/jupyter_nbextensions_configurator/static/nbextensions_configurator/render/render.js
2. I vim the ./share/jupyter/nbextensions/nbextensions_configurator/render/render.js and found that it used marked.js. I searched marked.js by find . -name marked.js, and found that it is in ./lib/python3.10/site-packages/nbclassic/static/components/marked/lib/marked.js
3. It Looks like there are duplicate nbextensions installed in anaconda310, and the copy in ./share has higher priority. I confirmed this by find . -name nbextensions
4. Then I removed ./share/jupyter/nbextensions, and everything was sorted. (another option is to install nbclassic to ./share)