After installing new version, cannot find python environment

[rclUPC]

Description

After installing new version of Jupyterlab Desktop (version 4.0.7-1), I cannot start new session since python environment is not found, even when it has been installed (bundled environment).

Reproduce

1. Launch Jupyterlab Desktop, either from terminal (jlab) or with menu.
2. See error 'Python environment not found'

Context

• Operating System and version: Linux Mint 21.2 Cinnamon
• JupyterLab-Desktop version: 4.0.7-1
• Installer: .deb

Logs (required for issues with loading, server and startup)

The log file in .config/jupyterlab-desktop/logs/main.log gives the following information:

[2023-11-03 19:06:09.898] [error] Required Python packages not found in the environment path "/home/robert/.config/jupyterlab-desktop/jlab_server/". Versions found are: jupyterlab: NOT-FOUND. You can install missing packages using 'conda install -c conda-forge -y "jupyterlab>=3.0.0"'.
[2023-11-03 19:06:10.439] [error] Required Python packages not found in the environment path "/home/robert/.config/jupyterlab-desktop/jlab_server/". Versions found are: jupyterlab: NOT-FOUND. You can install missing packages using 'conda install -c conda-forge -y "jupyterlab>=3.0.0"'.
[2023-11-03 19:06:11.585] [error] Failed to create free server Error: No default environment found!
at /opt/JupyterLab/resources/app.asar/build/out/main/registry.js:224:32
[2023-11-03 19:06:11.587] [error] (node:513779) UnhandledPromiseRejectionWarning: Error: No default environment found!
at /opt/JupyterLab/resources/app.asar/build/out/main/registry.js:224:32
(Use jupyterlab-desktop --trace-warnings ... to show where the warning was created)
[2023-11-03 19:06:11.588] [error] (node:513779) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag --unhandled-rejections=strict (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 3)

I have installed jupterlab in the enviroment, but the error persists.

[welcome[bot]]

Thank you for opening your first issue in this project! Engagement like this is essential for open source projects! :hugs:
If you haven't done so already, check out Jupyter's Code of Conduct. Also, please try to follow the issue template as it helps other other community members to contribute more effectively. You can meet the other Jovyans by joining our Discourse forum. There is also an intro thread there where you can stop by and say Hi! :wave:
Welcome to the Jupyter community! :tada:

[rclUPC]

Version 4.0.5-1 gives same error. Version 4.0.2-1 works fine.

[JasonWeill]

Are you still seeing this with a newer version? Does the problem persist after uninstalling and installing JupyterLab Desktop?

[rclUPC]

Hi, As far as I know, there is no newer version than 4.0.7-1. Still the same problem.

[mbektas]

hi @rclUPC can you try these on your system terminal. does it work? any error messages?

jlab env activate # assumes you have installed the bundled environment already
jupyter lab

[mrinalraghupathi]

I am not sure if this is related but I have a a similar issue. I have jupyterlab installed in a base conda environemtn and I can run jupyter lab from the terminal as a web application without any issues.

When I launched JLD I was prompted to create a custom environment and I setup the python path to point to python in the base conda environment.

However, JLD will not start now

JLD version: 4.0.7-1 (although this happens on older versions as well) Mac OS: 13.4.1 running M1 processor JL version in environment: 4.0.8 (although same happens for any version of JL I've tried, e.g. 3.6.3)

Log file (I have replaced my actual username with a placeholder USERNAME for posting, but on my machine it is just my real username). Note that the first log entry are from a fresh install of JLD and then after being prompted I updated the python path.

[2024-01-02 12:23:00.017] [error] Failed to get environment info at path '/usr/bin/python3'. SyntaxError: Unexpected token 'x', "xcrun: err"... is not valid JSON
    at JSON.parse (<anonymous>)
    at Registry.getEnvironmentInfo (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:285:34)
    at async Registry._resolveEnvironment (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:159:21)
    at async /Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:148:78
    at async Promise.all (index 2)
    at async Registry._resolveEnvironments (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:148:30)
    at async /Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:111:30
[2024-01-02 12:23:01.276] [error] Failed to get environment info at path '/Users/{USERNAME}/miniconda3/bin/python3'. SyntaxError: Unexpected token 'I', "Intel MKL "... is not valid JSON
    at JSON.parse (<anonymous>)
    at Registry.getEnvironmentInfo (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:285:34)
    at async Registry._resolveEnvironment (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:159:21)
    at async /Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:148:78
    at async Promise.all (index 0)
    at async Registry._resolveEnvironments (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:148:30)
    at async /Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:111:30
[2024-01-02 12:23:01.276] [error] Failed to get environment info at path '/Users/{USERNAME}/miniconda3/envs/ds/bin/python'. SyntaxError: Unexpected token 'I', "Intel MKL "... is not valid JSON
    at JSON.parse (<anonymous>)
    at Registry.getEnvironmentInfo (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:285:34)
    at async Registry._resolveEnvironment (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:159:21)
    at async /Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:148:78
    at async Promise.all (index 3)
    at async Registry._resolveEnvironments (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:148:30)
    at async /Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:111:30
[2024-01-02 12:23:01.277] [error] Failed to create free server Error: No default environment found!
    at /Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:192:32
[2024-01-02 12:23:01.277] [error] (node:64080) UnhandledPromiseRejectionWarning: Error: No default environment found!
    at /Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:192:32
(Use `JupyterLab --trace-warnings ...` to show where the warning was created)
[2024-01-02 12:23:01.277] [error] (node:64080) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
[2024-01-02 12:24:50.789] [error] SyntaxError: Unexpected token 'I', "Intel MKL "... is not valid JSON
    at JSON.parse (<anonymous>)
    at Registry.getEnvironmentInfoSync (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:311:30)
    at Registry._resolveEnvironmentSync (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:169:26)
    at new Registry (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:68:33)
    at new JupyterApplication (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/app.js:175:26)
    at App.<anonymous> (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/main.js:180:22)
[2024-01-02 12:25:23.293] [error] SyntaxError: Unexpected token 'I', "Intel MKL "... is not valid JSON
    at JSON.parse (<anonymous>)
    at Registry.getEnvironmentInfoSync (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:311:30)
    at Registry._resolveEnvironmentSync (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:169:26)
    at new Registry (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:68:33)
    at new JupyterApplication (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/app.js:175:26)
    at App.<anonymous> (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/main.js:180:22)
[2024-01-02 12:26:07.129] [error] SyntaxError: Unexpected token 'I', "Intel MKL "... is not valid JSON
    at JSON.parse (<anonymous>)
    at Registry.getEnvironmentInfoSync (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:311:30)
    at Registry._resolveEnvironmentSync (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:169:26)
    at new Registry (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:68:33)
    at new JupyterApplication (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/app.js:175:26)
    at App.<anonymous> (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/main.js:180:22)
[2024-01-02 12:27:42.130] [error] SyntaxError: Unexpected token 'I', "Intel MKL "... is not valid JSON
    at JSON.parse (<anonymous>)
    at Registry.getEnvironmentInfoSync (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:311:30)
    at Registry._resolveEnvironmentSync (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:169:26)
    at new Registry (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:68:33)
    at new JupyterApplication (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/app.js:175:26)
    at App.<anonymous> (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/main.js:180:22)
[2024-01-02 12:29:03.069] [error] Error: EPERM: operation not permitted, chmod '/Applications/JupyterLab.app/Contents/Resources/app/jlab'
    at Object.chmodSync (node:fs:1888:3)
    at setupJLabCommand (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/main.js:130:12)
    at App.<anonymous> (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/main.js:178:9)
[2024-01-02 12:29:04.231] [error] SyntaxError: Unexpected token 'I', "Intel MKL "... is not valid JSON
    at JSON.parse (<anonymous>)
    at Registry.getEnvironmentInfoSync (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:311:30)
    at Registry._resolveEnvironmentSync (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:169:26)
    at new Registry (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:68:33)
    at new JupyterApplication (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/app.js:175:26)
    at App.<anonymous> (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/main.js:180:22)
[2024-01-02 12:29:15.944] [error] Error: EPERM: operation not permitted, chmod '/Applications/JupyterLab.app/Contents/Resources/app/jlab'
    at Object.chmodSync (node:fs:1888:3)
    at setupJLabCommand (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/main.js:130:12)
    at App.<anonymous> (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/main.js:178:9)
[2024-01-02 12:29:17.144] [error] SyntaxError: Unexpected token 'I', "Intel MKL "... is not valid JSON
    at JSON.parse (<anonymous>)
    at Registry.getEnvironmentInfoSync (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:311:30)
    at Registry._resolveEnvironmentSync (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:169:26)
    at new Registry (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/registry.js:68:33)
    at new JupyterApplication (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/app.js:175:26)
    at App.<anonymous> (/Applications/JupyterLab.app/Contents/Resources/app.asar/build/out/main/main.js:180:22)

settings.json

{
  "pythonPath": "/Users/{USERNAME}/miniconda3/bin/python",
  "serverEnvVars": {}
}

output of jlab env info is

Default Python environment path:
  "/Users/{USERNAME}/miniconda3/" [exists]
Bundled Python environment installation path:
  "/Users/{USERNAME}/Library/jupyterlab-desktop/jlab_server" [not found]
Base conda environment path:
  "/Users/{USERNAME}/miniconda3" [exists]
System Python path:
  "/Users/{USERNAME}/miniconda3/bin/python3" [exists]

output of jlab env list is

Discovered Python environments:
  None

User set Python environments:
  None

[mrinalraghupathi]

hi @rclUPC can you try these on your system terminal. does it work? any error messages?

jlab env activate # assumes you have installed the bundled environment already
jupyter lab

I tried this and it did work in my case, i.e. it launched a jupyterlab web app.

[rclUPC]

Hi, and Happy New Year!! @mbektas, I tried and I get first a message about the module pyrsistent missing. I installed it with pip install, but it is still not working:

  File "/home/robert/.config/jupyterlab-desktop/jlab_server/bin/jupyter-lab", line 6, in <module>
    from jupyterlab.labapp import main
  File "/home/robert/.config/jupyterlab-desktop/jlab_server/lib/python3.8/site-packages/jupyterlab/__init__.py", line 8, in <module>
    from .handlers.announcements import (
  File "/home/robert/.config/jupyterlab-desktop/jlab_server/lib/python3.8/site-packages/jupyterlab/handlers/announcements.py", line 14, in <module>
    from jupyter_server.base.handlers import APIHandler
  File "/home/robert/.config/jupyterlab-desktop/jlab_server/lib/python3.8/site-packages/jupyter_server/base/handlers.py", line 24, in <module>
    from jupyter_events import EventLogger
  File "/home/robert/.config/jupyterlab-desktop/jlab_server/lib/python3.8/site-packages/jupyter_events/__init__.py", line 3, in <module>
    from .logger import EVENTS_METADATA_VERSION, EventLogger
  File "/home/robert/.config/jupyterlab-desktop/jlab_server/lib/python3.8/site-packages/jupyter_events/logger.py", line 19, in <module>
    from .schema import SchemaType
  File "/home/robert/.config/jupyterlab-desktop/jlab_server/lib/python3.8/site-packages/jupyter_events/schema.py", line 18, in <module>
    from .validators import draft7_format_checker, validate_schema
  File "/home/robert/.config/jupyterlab-desktop/jlab_server/lib/python3.8/site-packages/jupyter_events/validators.py", line 44, in <module>
    JUPYTER_EVENTS_SCHEMA_VALIDATOR = Draft7Validator(
TypeError: __init__() got an unexpected keyword argument 'registry'

[rclUPC]

BTW, if I use another python env (f.i., anaconda3) it works fine.

[xgdgsc]

How does it search for jupyterlab? I have python installed at D:\Program Files\Python312-arm64\python.exe but the installed jupyterlab are at C:\Users\UserNAME\AppData\Roaming\Python\Python312-arm64\ and it cannot find jupyterlab. I also tried sym linking site-packages and jupyter.exe jupyter-lab.exe