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Installation Error: "NameError: name 'CoreConfig' is not defined"

See original GitHub issue

System: Ubuntu 16.04 When I run the installation jupyter labextension install jupyterlab-spreadsheet in my Python 3.5.2 virtualenv I get the error:

An error occured. NameError: name 'CoreConfig' is not defined See the log file for details: /tmp/jupyterlab-debug-05zbv00j.log

The log in that location outputs

Traceback (most recent call last):

File “/home/skyler/Documents/NN/tf/lib/python3.5/site-packages/jupyterlab/commands.py”, line 1657, in _node_check output = subprocess.check_output([node, ‘node-version-check.js’], cwd=HERE)

File “/usr/lib/python3.5/subprocess.py”, line 626, in check_output **kwargs).stdout

File “/usr/lib/python3.5/subprocess.py”, line 708, in run output=stdout, stderr=stderr)

subprocess.CalledProcessError: Command ‘[’/usr/bin/nodejs’, ‘node-version-check.js’]’ returned non-zero exit status 1

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File “/home/skyler/Documents/NN/tf/lib/python3.5/site-packages/jupyterlab/debuglog.py”, line 47, in debug_logging yield

File “/home/skyler/Documents/NN/tf/lib/python3.5/site-packages/jupyterlab/labextensions.py”, line 93, in start ans = self.run_task()

File “/home/skyler/Documents/NN/tf/lib/python3.5/site-packages/jupyterlab/labextensions.py”, line 147, in run_task for i, arg in enumerate(self.extra_args)

File “/home/skyler/Documents/NN/tf/lib/python3.5/site-packages/jupyterlab/labextensions.py”, line 147, in <listcomp> for i, arg in enumerate(self.extra_args)

File “/home/skyler/Documents/NN/tf/lib/python3.5/site-packages/jupyterlab/commands.py”, line 319, in install_extension _node_check(logger)

File “/home/skyler/Documents/NN/tf/lib/python3.5/site-packages/jupyterlab/commands.py”, line 1660, in _node_check data = CoreConfig()._data

NameError: name ‘CoreConfig’ is not defined

Exiting application: jupyter

Issue Analytics

State:
Created 4 years ago
Comments:8 (3 by maintainers)

Top GitHub Comments

6reactions

Freedomisgoodcommented, Sep 22, 2019

Solved! That’s because the version of nodejs is low…My version is v4.2.6, I thought I install the newest, but that’s not true, everything is ok when i upgrade to v10.16.3

1reaction

ConanCuicommented, Nov 19, 2019

Hi you can update your nodejs to solve this problem by this simple code conda install -c conda-forge nodejs this code is from the official jupyter lab document. https://jupyterlab.readthedocs.io/en/stable/user/extensions.html

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