Notebook: cannot write in jupyter cell

[ecamossi]

Hi everyone,

I never had this issue before, but when I add a new cell between existing cells, I cannot write in it. I'm able to copy and paste from an existing cell into the new one, but I may just delete the content and I'm not able to modify it.
I tried restarting the kernel, the workstation, but it doesn't solve the problem.
It doesn't seem related to the keyboard layout (cf. issue #2379), because mine it's US.

Thanks in advance for any suggestion.
Kind regards,
-Elena

[takluyver]

:-/

Any errors in the browser's Javascript console when this is happening? Have you tried with another browser?

[ecamossi]

Hi takluyver,

thanks for the suggestion! Indeed, with IE it doesn't happen!

Whan I got the error, I was using chrome. For the sake of completeness, I open the js console and this is what I saw

There was no error when I was trying to write in the new line, but it seems there were other errors before. I don't know if they are related to the strange behaviour I got.

Regards,
-Elena

[takluyver]

The first error ('Failed to load resource...') might be related, but there's nothing obvious there. Do you have any extensions installed in Chrome?

[ecamossi]

Hi Thomas,

Thanks a lot for your suggestion, indeed I have many.
So I tried again with Chrome disabling all extensions, and indeed now it works as before.

I copy here the list of extensions that were enabled when I got the issue:

• Cisco WebEx Extension 1.0.12
• Docs 0.10
• EditThisCookie 1.4.1
• Eye Dropper 0.5.2
• Google Docs Offline 1.4
• Grammarly for Chrome 14.815.1286
• LastPass: Free Password Manager 4.2.0
• Note Board 7.4.30
• OpenLink Data Explorer 2.3.0
• Power Thesaurus 2.0
• Save to Pocket 2.1.49
• Sheets 1.2
• Slides 0.10
• Sticky Notes - Just popped up! 1.9.4

By the way, the failed resource error is still there. It seems related to the notebook, by the way (regarding extension widgetsnbextension or ipywidgets 4.0):

Here the error:

main.min.js:33264 actions jupyter-notebook:find-and-replace does not exist, still binding it in case it will be defined later...
MenuBar.bind_events @ main.min.js:33264
main.min.js:24777
Session: kernel_created (4e08fb3c-ecc1-46fa-b6d6-3bbf0aba379a)
main.min.js:23933
Starting WebSockets: ws://localhost:8888/api/kernels/f33e9099-bac3-444a-a9bc-31dd6970aa8d
:8888/nbextensions/widgets/notebook/js/extension.js?v=20171109155514

Failed to load resource: the server responded with a status of 404 (Not Found)
main.min.js:36594 Widgets are not available. Please install widgetsnbextension or ipywidgets 4.0
(anonymous) @ main.min.js:36594
main.min.js:23577
Kernel: kernel_connected (f33e9099-bac3-444a-a9bc-31dd6970aa8d)
main.min.js:23577
Kernel: kernel_ready (f33e9099-bac3-444a-a9bc-31dd6970aa8d)

Kind regards,
-Elena

[takluyver]

OK, sounds like that error is not related, then.

I recall there was some issue with Lastpass on Chrome before, but that may not be at fault this time.

[AbdullahRafiq098]

i have the same issue but after disabling entensions ad blocker, jupyter notebook let me edit my code. before that the cell was like in freez state i was unable to write on them.