Notebook: Could not open static file ''

[rbioinfo]

Hello,
I am using:

jupyter core     : 4.5.0
jupyter-notebook : 6.0.0
qtconsole        : 4.5.1
ipython          : 7.6.1
ipykernel        : 5.1.1
jupyter client   : 5.3.1
jupyter lab      : 1.0.2
nbconvert        : 5.5.0
ipywidgets       : 7.5.0
nbformat         : 4.4.0
traitlets        : 4.3.2

and I got this: [E 08:33:07.512 NotebookApp] Could not open static file ''
then the notebooks are loaded correctly. Is it normal that kind of message?
Thanks.

[reichenbch]

@rbioinfo I am getting the same message on launching jupyter but no clusters are up and running by default commands. I don't think it is normal scenario.

[Flid]

I guess the actual error is that something (between Tornado/Jupyter/Junja2) is trying to access /notebook/static/components/react/react-dom.production.min.js, but only react.production.min.js file is available in this directory.
It also shows 404 in the browser console.

Any ideas why?

[matiasscorsetti]

Update jupyter notebook worked for me.

If using Anaconda, update Jupyter using conda:
conda update jupyter

If using pip:
pip install -U jupyter

[reichenbch]

@matiasscorsetti Updating the jupyter didn't work for me and i think it wouldn't work because the issue is with the tornado version. (It was the case with me)

The steps i followed to get the jupyter kernel initialization to work are as follows:
1.) Downgrade tornado to a version less than 5.0.0. Command - pip install 'tornado<5.0.0' or pip install tornado==4.9.0
2.) Adding the react-dom.production.min.js file on the path Anaconda3\Lib\site-packages\notebook\static\components\react.

You can get this file from https://github.com/jupyter/notebook/pull/4772#issuecomment-515794823 or #4772 , whichever is convenient for you.

@Flid 404 error is shown because of missing react-dom.production.min.js file. The moment you add them in the path, it will go away

[lresende]

Fixed by #4772

[mghatiy]

I had the same issue and i resolved it by installing just jupyterlab instead of installing the specific version of jupyterlab.

[Fair-Child]

yea, also, I got the same problem.

[adejonghm]

I have the same problem. I'm using python 3.6.8 with pip and the latest version of jupyter. I tried with the reichenbch's solution and it didn't work. "pip install tornado==4.9.0" doesn't exist, 4.5.3 is the latest update of 4.x version.
How can I solve this problem?

[Flid]

Hi @adejonghm
Looks like the fix (https://github.com/jupyter/notebook/pull/4772) has been merged and released with 6.0.1, try updating the notebook package and see if it helps.

[adejonghm]

Thanks @Flid !!!

[suresh88]

updating the jupyter solved the problem :-)

[davecampbell]

the 'Update' option in the Navigator UI wasn't enough - i had to 'Install Specific Version' and choose the highest one in the list. the 'Update' option installed 6.0.0 and 6.0.2 was available, so that was the one i chose.
after doing this, the expected file was there - no 404 and no errors.

[medou63]

I had the same problem using Mac. jus go to anaconda environments and choose to update Jupiter form there it will works.

[shivamkumar0611]

Yes I think that will work

On Sat, 18 Jul 2020, 4:51 pm Mohamedou Neine, [e-mail]
wrote:

I had the same problem using Mac. jus go to anaconda environments and
choose to update Jupiter form there it will works.

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[wayneotweezy]

Updating Jupyter on both pip and pip3 ( I am assuming you had a problem trying to use python 3) solved the problem for me

[danielmlow]

pip install notebook --upgrade worked for me

[datageekette]

Update jupyter notebook worked for me.

If using Anaconda, update Jupyter using conda:
conda update jupyter

If using pip:
pip install -U jupyter

pip install -U jupyter notebook worked for me

[AlexTS1980]

In my case jupyter lab was missing, so I could only open the interface in browser, but nothing else.

pip3.5 install jupyterlab
pip3.5 install tornado==5.0
pip3.5 install -U jupyter 

did the job