Unable to build Jupyter lab 3.0.14

[Saudnihal]

Jupyter lab version= 3.0.14
python = 3.8.2
OS= Windows 10pro
After installing jupyter labextension spreadsheet jupyter lab failed to build. If i uninstall it then build successfully.

C:\Users\PC>jupyter labextension install jupyterlab-spreadsheet --no-build

C:\Users\PC>jupyter lab build --minimize=False
[LabBuildApp] JupyterLab 3.0.14
[LabBuildApp] Building in C:\Program Files\Autosphere\Process Studio\App\Python\share\jupyter\lab
[LabBuildApp] Building jupyterlab assets (production, not minimized)
Build failed.
Troubleshooting: If the build failed due to an out-of-memory error, you
may be able to fix it by disabling the dev_build and/or minimize options.

If you are building via the jupyter lab build command, you can disable
these options like so:

jupyter lab build --dev-build=False --minimize=False

You can also disable these options for all JupyterLab builds by adding these
lines to a Jupyter config file named jupyter_config.py:

c.LabBuildApp.minimize = False
c.LabBuildApp.dev_build = False

If you don't already have a jupyter_config.py file, you can create one by
adding a blank file of that name to any of the Jupyter config directories.
The config directories can be listed by running:

jupyter --paths

Explanation:

• dev-build: This option controls whether a dev or a more streamlined
  production build is used. This option will default to False (i.e., the
  production build) for most users. However, if you have any labextensions
  installed from local files, this option will instead default to True.
  Explicitly setting dev-build to False will ensure that the production
  build is used in all circumstances.

• minimize: This option controls whether your JS bundle is minified
  during the Webpack build, which helps to improve JupyterLab's overall
  performance. However, the minifier plugin used by Webpack is very memory
  intensive, so turning it off may help the build finish successfully in
  low-memory environments.

An error occured.
RuntimeError: JupyterLab failed to build
See the log file for details: C:\Users\PC\AppData\Local\Temp\jupyterlab-debug-9p9orm7d.log

[caexy]

I have this problem as well. The version of Jupyter is 3.0.16

[caexy]

Could you please provide the error log? I tried to reinstall it today and it worked。

[Saudnihal]

Could you please provide the error log? I tried to reinstall it today and it worked。

jupyterlab-debug-29906bbt.log
Here is a log file

[quigleyj97]

Thanks for posting the debug log!

Checking the log, this appears to be a dependency issue with how JQuery is bundled:

31mModuleNotFoundError: Module not found: Error: Can't resolve '.\jquery.js' in 'C:\Program Files\Autosphere\Process Studio\App\Python\share\jupyter\lab\staging\node_modules\jquery\dist'
Did you mean './.\jquery.js'?

I had to hack in JQuery to get it to work within Jupyterlab's webpack build, and it seems likely that something in that hack broke. Investigating further, I'll see if I can repro this locally.

[quigleyj97]

Unable to reproduce that exact failure, but after updating dependencies I did encounter one very similar build failure relating to that same hack. The format that expose-loader uses changed from 0.7.5 to 1.x, and now requires an exposes property to signal what the exported symbols are.