CODEWITHSUNDEEP
node.jsjupyter-lab
Igniter
Igniter

Reputation: 615

Could not determine jupyterlab build status without nodejs

I'm seeing this error in the terminal: "Could not determine jupyterlab build status without nodejs". Even when latest version of nodejs is installed on my PC.

Please guide what should I do?

Upvotes: 34

Views: 62791

Answers (11)

hamagust
hamagust

Reputation: 854

What worked for me was

  1. to install/update nvm-sh (a version manager of node.js), as indicated here

    curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.1/install.sh | bash export NVM_DIR="$([ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" || printf %s "${XDG_CONFIG_HOME}/nvm")" [ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm

  2. And download, compile and install the lates release of node using

    nvm install node

I do not understand what it differs from the following ones, but none of those worked for me:

  • conda-install-c conda-forge nodejs in the jupyter lab's conda environment
  • pip install nodejs in the terminal (base)

Upvotes: 0

nameofname
nameofname

Reputation: 180

Some users who already have node installed may still get the error if you are not using the correct version. I'm working on mac and was able to resolve the error by using the correct latest LTS version of node which is 22 as of this writing. As a JS dev I already had it installed but I have 18 configured as the default and was seeing the error. The following steps caused the error to go away :

  • kill your jupyter process
  • open a new terminal tab
  • mise use node@22 (most people will have nvm, or other similar cli tools like volta)
  • jupyter lab

As others have already pointed out, if you don't have node installed then you must install it first.

Upvotes: 0

Dino Hsu
Dino Hsu

Reputation: 39

I've just installed nodejs (in an environment other than base), but that message still persists. (Windows 11)

pip install nodejs

(I check with conda list nodejs, pip and conda know either other's installation)

Upvotes: 0

faekkkkkk
faekkkkkk

Reputation: 1

still need python binding for nodejs

sudo pip install nodejs

Upvotes: -2

DanDevost
DanDevost

Reputation: 61

Just for completeness, on Linux Mint LMDE 5, installing with pip solved the problem:

pip install nodejs

Upvotes: 1

Le Quang Nam
Le Quang Nam

Reputation: 372

On Unbuntu 20.04, just activate the environment and install by conda:

conda install -c conda-forge nodejs

Upvotes: 12

seulberg1
seulberg1

Reputation: 1013

FWIW, I got the same error message, on Win10, and just restarted the virtual environment, restarted jupyter lab and have not had the error since (several days). Doesnt help of course if there is an underlying issue:)

Upvotes: 1

davzaman
davzaman

Reputation: 853

I installed it from source but it looks like a version had installed on conda that was old, which was causing this issue. If you've installed nodejs with conda (or something similar) you will get an outdated version, uninstall it and install it from the nodejs website manually. The error will fix.

Upvotes: 0

koficodes
koficodes

Reputation: 320

Try the command below, follow through the prompt and see if it helps in your issue.

jupyter lab --debug

You can check your installation of npm or nodes by using

node -v
npm -v

Upvotes: 3

Nishank Lakkakula
Nishank Lakkakula

Reputation: 376

For Mac OS/Windows: install LTS version of Node.js from here and restart jupyter lab.

Upvotes: 0

jim_carson
jim_carson

Reputation: 428

I ran into a similar issue this morning and ended up here. The diagnostic message appears to be harmless:

[W 07:35:51.998 LabApp] Could not determine jupyterlab build status without nodejs

However, the way I resolved it for my configuration (Windows 10, Anaconda distribution of Python 3.7) was to download NodeJS from the source. Choose the LTS (Long Term Support) version of Node.js rather than the "Current with the latest features" edition.

Next, ensure the node executable is in the search path. On Windows, hold the Windows key and Break. Click on Advanced System Settings -> Environment Variables -> System Variables. Double click PATH to edit. Click OK until you're out.

In a new command window, run:

jupyter lab

You're looking for something like this in the output:

[I 07:16:26.721 LabApp] Node v10.15.3

Upvotes: 18

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