Showing only the logo animation in Ubuntu 20.04

[Binit-Dhakal]

When i open the Jupyter lab app it only shows the starting animation and do nothing. I don't know if there is something fault from my side as i am newbie in this jupyter lab environment but it seem not to work. I dont think i made any mistake regarding installation as its quite easy (just installing the .deb file).

I have just left it to open for about 10 minutes but its still showing only animation. Should i do more than just installing .deb file or is it a bug?

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[krassowski]

It's a bug. Could you please press Ctrl + Shift + I and copy-paste all messages from Console tab and any errors in the Network tab so we can understand what's causing it? Also do you remember which version you installed?

[Binit-Dhakal]

This is the error message in the console tab::

1. GET http://localhost:8889/lab/api/settings/@jupyterlab/translation-extension:plugin?1633624541226 404 (Not Found)

2. 20:13:22.655 › Error: Schema not found: /home/binit/.local/share/jupyter/lab/schemas/@jupyterlab/translation-extension/plugin.json at Function.create (browser.bundle.js:103458) at async SettingManager.fetch (browser.bundle.js:104505)

3. 20:13:22.655 › Plugin '@jupyterlab/debugger-extension:consoles' failed to activate.

4. DevTools failed to load SourceMap: Could not load content for file:///opt/JupyterLab/resources/app.asar/build/browser.bundle.js.map:

I can not see any error in network tab (if there would have been error where can i find that in network tab as i have not been able to see any error directly visible like in console in network tab :: just pointing out because i maybe missing the error)

I have installed the version thats on readme.md . release v3.1.13-1.

Edit:: I can see this message at the top in console(if this might be any help to hunt the bug) Download the React DevTools for a better development experience: https://reactjs.org/link/react-devtools You might need to use a local HTTP server (instead of file://): https://reactjs.org/link/react-devtools-faq

Also i can see two issues( don't know if this is useful): Indicate whether to send a cookie in a cross-site request by specifying its SameSite attribute Indicate whether a cookie is intended to be set in cross-site context by specifying its SameSite attribute

Thank you,

[krassowski]

Thank you! I think that "schema not found" is the most useful message. One possibility would be that you installed the app as a root/sudo user, but are running it as a normal user. Another possibility would be that you have an older (< 3) version of JupyterLab installed elsewhere. There is also a possibility of an issue with the installer but it seems less likely to me.

[Binit-Dhakal]

I think i have installed it using sudo i guess as this is the first version of jupyterlab desktop i am installing(so second option might be incorrect) . The downloaded .deb file opens with "Software install" and then it asks for password as it is installed from other source. Can you please help, how can i install it as a normal user or run it as sudo / root user(both might work for now)?

I know i can do sudo </app name/> to run the app as root user, but tried using "jupyter lab desktop" || "jupyterlab-app" but nothing seems to work from terminal.

[krassowski]

The command-line name is jlab, so maybe sudo jlab? Could you also see if there are any logs in ~/.config/jupyterlab-desktop/logs/main.log and paste those here, please?

Edit: but you may need to update to the latest version first - a lot has changed since October.

[mbektas]

no response for long time. should be fixed in the newer versions.