JupyterLab not running

[rasnegus]

trafficstars

Traceback (most recent call last): File "C:\Users\wlady\Anaconda3\lib\site-packages\jupyterlab_server\server.py", line 14, in from notebook.base.handlers import ( File "C:\Users\wlady\Anaconda3\lib\site-packages\notebook\base\handlers.py", line 21, in from jinja2 import TemplateNotFound File "C:\Users\wlady\Anaconda3\lib\site-packages\jinja2_init_.py", line 12, in from .environment import Environment File "C:\Users\wlady\Anaconda3\lib\site-packages\jinja2\environment.py", line 25, in from .defaults import BLOCK_END_STRING File "C:\Users\wlady\Anaconda3\lib\site-packages\jinja2\defaults.py", line 3, in from .filters import FILTERS as DEFAULT_FILTERS # noqa: F401 File "C:\Users\wlady\Anaconda3\lib\site-packages\jinja2\filters.py", line 13, in from markupsafe import soft_unicode ImportError: cannot import name 'soft_unicode' from 'markupsafe' (C:\Users\wlady\Anaconda3\lib\site-packages\markupsafe_init_.py)

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "C:\Users\wlady\Anaconda3\Scripts\jupyter-lab-script.py", line 5, in from jupyterlab.labapp import main File "C:\Users\wlady\Anaconda3\lib\site-packages\jupyterlab\labapp.py", line 14, in from jupyterlab_server import slugify, WORKSPACE_EXTENSION File "C:\Users\wlady\Anaconda3\lib\site-packages\jupyterlab_server_init_.py", line 4, in from .app import LabServerApp File "C:\Users\wlady\Anaconda3\lib\site-packages\jupyterlab_server\app.py", line 9, in from .server import ServerApp File "C:\Users\wlady\Anaconda3\lib\site-packages\jupyterlab_server\server.py", line 26, in from jupyter_server.base.handlers import ( # noqa ModuleNotFoundError: No module named 'jupyter_server'

[JasonWeill]

@rasnegus Thanks for opening this issue! Can you please share how you've installed JupyterLab and Jupyter Notebook? Which versions of these packages, and on which OS and version, are you trying to run?

[RRosio]

Hi @rasnegus, just following up with you, would you be able to provide the information requested above?