WebIO not detected.

[tamasgal]

I recently filed an issue in Interact.jl (JuliaGizmos/Interact.jl#280) since I was not able to use it, but it's obviously an issue with WebIO.jl.

If I try to use it in Jupyter, I get the error WebIO not detected. and the deps/build.log is empty. I also tried to rebuild it but it gives no error whatsoever:

(v1.0) pkg> build WebIO
  Building WebIO → `~/.julia/packages/WebIO/NYISm/deps/build.log`

(v1.0) pkg>

Any ideas how to debug this? I am running Julia 1.0 and can't get it to work on macOS Mojave.

[Fruktus]

Check if you have nbextensions installed in jupyter, this solved my problem with this issue

[truefalsename]

Hello, I am having the same problem when I try to plot using PlotlyJS. As an output I get "WebIO not detected.". I have nbextensions installed and WebIO is active

[truefalsename]

Update: I reinstalled WebIO after having installed nbextensions and I can now see the plots, however, whenever I open a notebook I see a warning saying that WebIO was loaded on an ad-hoc basis, despite the fact that the corresponding extension is active prior to loading the notebook.

Plots also appear buggy: i cannot rotate 3d plots at all for instance

[truefalsename]

another update:

PS C:\Users\lucam.jupyter> jupyter nbextension list
Known nbextensions:
config dir: C:\Users\lucam.jupyter\nbconfig
notebook section
webio/main enabled
- Validating: problems found:
- require? X webio/main
nbextensions_configurator/config_menu/main enabled
- Validating: problems found:
- require? X nbextensions_configurator/config_menu/main
contrib_nbextensions_help_item/main enabled
- Validating: ok
jupyter-js-widgets/extension enabled
- Validating: ok
tree section
nbextensions_configurator/tree_tab/main enabled
- Validating: problems found:
- require? X nbextensions_configurator/tree_tab/main
config dir: c:\program files\python37\etc\jupyter\nbconfig
notebook section
jupyter-js-widgets/extension enabled
- Validating: ok

[tamasgal]

@Fruktus that was it thanks!

pip install jupyter_contrib_nbextensions

[truefalsename]

Hi, I tried a clean install of jupyter, installing the contrib_extensions too, but I have still problems:
PS C:\Users\lucam> jupyter nbextension list Known nbextensions: config dir: C:\Users\lucam\.jupyter\nbconfig notebook section webio/main enabled - Validating: problems found: - require? X webio/main jupyter-js-widgets/extension enabled - Validating: ok config dir: c:\users\lucam\appdata\local\programs\python\python37\etc\jupyter\nbconfig notebook section jupyter-js-widgets/extension enabled - Validating: ok
and when I launch a julia notebook I get
404 GET /nbextensions/webio/main.js?v=20181213142241 (::1) 10.00ms referer=http://localhost:8888/notebooks/Active%20projects/Gaia/Gaia_data_v2.ipynb [I 14:22:51.060 NotebookApp] Kernel started: 78e6e07f-5015-4ba6-9693-b921280b411a [W 14:22:51.372 NotebookApp] 404 GET /nbextensions/widgets/notebook/js/extension.js?v=20181213142241 (::1) 1.99ms referer=http://localhost:8888/notebooks/Active%20projects/Gaia/Gaia_data_v2.ipynb
in general I can see plots in the notebook but they are extremely buggy, for instance I am not able to rotate 3d plots and annotations on hover get stuck to the first object

[twavv]

Hi, all, are y'all still having issues?

If so, try the latest on the webio-retool branch (should also be available as v0.6.2 very soon).

]add WebIO#webio-retool

I added a number of Jupyter notebook stability fixes.

[truefalsename]

Hey, thanks but unfortunately it didn't help: still get the same 404 I reported before and when I try to plot something it says that WebIO is not detected.

[shashi]

You might need to restart jupyter once you install or build WebIO... Did you try that @truefalsename?

[truefalsename]

I tried, didn't help. When I open a julia noebook I still get the same 404 as before and when I try to plot something via plotlyjs either I get "WebIO not detected" or I get a plot in a separate electron window (should have been in notebook) and the plot is super buggy. cannot rotate/interact with 3d plots and the navigation buttons do random things.

[twavv]

I think the issue is perhaps a false assumption about where nbextensions live in Windows.

I think the jupyter-nbextension command has some way to list the directory where extensions live. The build process should be updated to include that directory instead of hard coding the path.

[twavv]

Can you run jupyter --paths and see what it spits out?

[truefalsename]

Hello,
sure, sorry for the slow reply -- have been digesting.

Here is the output

config:
C:\Users\lucam.jupyter
c:\users\lucam\appdata\local\programs\python\python37\etc\jupyter
C:\ProgramData\jupyter
data:
C:\Users\lucam\AppData\Roaming\jupyter
c:\users\lucam\appdata\local\programs\python\python37\share\jupyter
C:\ProgramData\jupyter
runtime:
C:\Users\lucam\AppData\Roaming\jupyter\runtime

[twavv]

This should be fixed now that WebIO installs the extension to the correct OS-specific location (when using master -- the "latest" version, 0.7.0, should work regardless). If you have issues still, please let me know, but I'm closing this for now.

[hhaensel]

For me it still doen't work.
I suppose, that
return joinpath(homedir(), "%APPDATA%", "jupyter")
in https://github.com/JuliaGizmos/WebIO.jl/blob/master/deps/build.jl#L64 should be replaced by
return joinpath("%APPDATA%", "jupyter")
(working on Windows 7; interestingly, in the address bar of the explorer window the output of joinpath(homedir(), "%APPDATA%", "jupyter") resolves fine, whereas it doesn't on the command line)

[sschuldenzucker]

Hi! I just spotted another incarnation of this issue on Windows 10.

I had the same problem (not working and "problems found" in jupyter nbextension list), but I found a folder at the literal (not further expanded) path: C:\Users\steff\%APPDATA%\jupyter\nbextensions\webio ("steff" is my user name; the folder is literally called "%APPDATA%").

It looks like expansion in

WebIO.jl/deps/build.jl

Line 64 in 119a22b

return joinpath("%APPDATA%", "jupyter")

is not working. That's the only place where %APPDATA% is used in the build script, at least.

I then copied the folder to the expanded path %APPDATA%\jupyter\nbextensions\webio (in my case that's C:\Users\steff\AppData\Roaming\jupyter\nbextensions) and since then everything works perfectly.

[pfitzseb]

That %APPDATA% issue will be fixed with #286.

[twavv]

That PR has been merged.

If you're still having issues (on Windows), please build WebIO again (feel free to delete the extraneous %APPDATA% directory that we accidentally created). If you're still having issues, please open a new issue.