I have been trying to follow the instructions given at the link below to set up a server extension in local editable mode for JupyterLab.
The basic steps are:
cookiecutter https://github.com/jupyterlab/extension-cookiecutter-ts (*has_server_extension* set to *y*) pip install -e . jupyter labextension develop . --overwrite jupyter server extension enable jlab_ext_example
After the last step, I always get the following.
Enabling: jlab_ext_example - Writing config: /usr/etc/jupyter - Validating jlab_ext_example... X Validation failed: The module 'jlab_ext_example' could not be found. Are you sure the extension is installed?
This is regardless of whether I use cookiecutter to create the project or just use the server-extension project from GitHub. Is this something to do with the build environment settings?