Jupyter fails to start on Windows when runtime dir has an apostrophe or space in it

[Nanaaaa1]

Your file couldn’t be accessed
It may have been moved, edited, or deleted.
ERR_FILE_NOT_FOUND

this is my path = file:///C:/Users/Nana's%20laptop/AppData/Roaming/jupyter/runtime/jpserver-16052-open.html

[Shahid6174]

What I think is the apostrophe would be causing a problem. Try renaming it. If it still doesn't work then check permissions.

[RRosio]

Thanks for opening this issue @Nanaaaa1, could you share if you have the same issue when running jupyter notebook --no-browser?

Alternatively, can you try changing your runtime directory using the instructions in the comment?

[JasonWeill]

I tried setting my runtime directory to ~/jason's-temp, and when I started Lab 4.3.0 beta on macOS, file:///Users/jweill/jason%27s-temp/jpserver-78401-open.html was opened successfully (note URL escaping). With another test directory, a space in the file path was correctly escaped to %20. In both cases, the JupyterLab and Jupyter Notebook applications opened successfully.

[JasonWeill]

This may be Windows-specific; need to try verifying on a Windows PC.

[JasonWeill]

With JupyterLab 4.2.5, after setting JUPYTER_RUNTIME_DIR to a directory with an apostrophe and a space in it, I see an error on startup:

OSError: [WinError 123] The filename, directory name, or volume label syntax is incorrect: '"C:\\Users\\jweill\\jl-playground\\Jason\'s test"'

[JasonWeill]

On Windows, I also see "WinError 123" when the directory has an apostrophe and no space, or when the directory has a space and no apostrophe.

[MagabiPravin]

I really don't what happened, but mine worked.

I changed the folder settings to unselect read-only and save the changes.
I opened the runtime folder as an administrator.

Then I launched Jupyter using Anaconda Navigator. It worked.

I hope it helps.