I am having error below when I tried to use jupyterhub:
Spawning jupyterhub-singleuser --port=50928
[W 2018-09-13 22:41:17.283 SingleUserNotebookApp notebookapp:1554] Error
loading server extension jupyterlab
Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/notebook/notebookapp.py", line
1546, in init_server_extensions
mod = importlib.import_module(modulename)
File "/usr/lib64/python3.6/importlib/__init__.py", line 126, in
import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 994, in _gcd_import
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 953, in
_find_and_load_unlocked
ModuleNotFoundError: No module named 'jupyterlab'
Why there is error relates to jupyterlab?
I have previous jupyter (with three kernels) on this node, would that
matter?
How can I completely uninstall the existing jupyter related tool?
Thank you very much.
*------------------------------------------------*
*Sincerely yours,*
*Raymond*
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