Binder example doesn't work

[remram44]

I followed the link from the README but couldn't find any JupyText action in the palette:

[mwouts]

Thanks @remram44 for reporting this. I have not much insight yet of what can cause this error... I'll see if I can get more information about this. Until we can fix this, I suggest you go to Help / Launch Classic Notebook, and use the Jupytext menu (under File) to run the demo.

@choldgraf , I've executed jupyter lab build in a terminal (in JupyterLab in binder) and it works (but still no extension). Outputs are consistent with what I get locally. There are a few warnings like this one

WARNING in @jupyterlab/apputils
  Multiple versions of @jupyterlab/apputils found:
    0.19.1 ./~/@jupyterlab\apputils from ./~/@jupyterlab\apputils\style\index.css
    1.0.0 ./~/jupyterlab-jupytext/~/@jupyterlab\apputils from ./~/jupyterlab-jupytext/~/@jupyterlab\apputils\lib\index.js

but I doubt they are related to the issue. I will also have a look at this hint:

Check how you can resolve duplicate packages:
https://github.com/darrenscerri/duplicate-package-checker-webpack-plugin#resolving-duplicate-packages-in-your-bundle

[choldgraf]

hmmmm, this is super confusing - it was working a few days ago and I don't believe we changed anything, did we?

[mwouts]

I see that there is a message in the browser logs about this:

Also, I am afraid that the issue is not only with Binder... Locally I get the same problem on both Ubuntu and Windows. I'm very far from being a JS/TS expert, but I will have a look at this!

[remram44]

I don't think I can help with this... good luck! I appreciate the work on non-JSON Jupyter!

[choldgraf]

hmmm, maybe this is a dependency issue? You could ask around in the jupyterlab section of the community forum to see if others have the same issue

[mwouts]

Interesting... the extension does work with Jupyter 1.0 ! Cf. https://mybinder.org/v2/gh/mwouts/jupytext/jupyter_lab_build?urlpath=lab/tree/demo/get_started.ipynb

[choldgraf]

lol, that's weird...

[mwouts]

I have published a version 0.19.0 (that's the last version of jupyerlab on npm before 1.0) of the extension on npmjs. People who use Jupyter Lab 0.35 can install it with:

jupyter labextension install jupyterlab-jupytext@0.19