Extension fails to load on Mac OS Catalina

[creativeprojects]

Describe the bug
The extension apparently fails to load on Mac OS Catalina (10.15.7). When trying to select a board, I get the error command 'circuitpython.selectBoard' not found

To Reproduce

• Start vscode in an empty folder.
• Copy a working code.py (default one copied from a brand new FeatherS2).
• Install the extension
• Try to select a board

Expected behavior
Commands to select a board should have been installed by the extension

Desktop (please complete the following information):

• Mac OS Catalina - Mac mini 2018
• Version 10.15.7

Additional context
From the extension host logs, I can see:

[2021-04-05 12:22:41.194] [exthost] [error] Activating extension joedevivo.vscode-circuitpython failed due to an error:
[2021-04-05 12:22:41.194] [exthost] [error] TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received null
	at validateString (internal/validators.js:120:11)
	at Object.join (path.js:1039:7)
	at LibraryManager.getProjectLibDir (/Users/cp/.vscode/extensions/joedevivo.vscode-circuitpython-0.1.10/out/librarymanager/libraryManager.js:229:22)
	at LibraryManager.<anonymous> (/Users/cp/.vscode/extensions/joedevivo.vscode-circuitpython-0.1.10/out/librarymanager/libraryManager.js:114:39)
	at Generator.next (<anonymous>)
	at fulfilled (/Users/cp/.vscode/extensions/joedevivo.vscode-circuitpython-0.1.10/out/librarymanager/libraryManager.js:5:58)
	at runMicrotasks (<anonymous>)
	at processTicksAndRejections (internal/process/task_queues.js:97:5)

and a settings.json file has been generated:

{
    "python.languageServer": "Pylance",
    "python.linting.pylintEnabled": false,
    "python.analysis.diagnosticSeverityOverrides": {
        "reportMissingModuleSource": "none"
    },
    "python.analysis.extraPaths": [
        null,
        "/Users/cp/.vscode/extensions/joedevivo.vscode-circuitpython-0.1.10/stubs",
        "/Users/cp/Library/Application Support/Code/User/globalStorage/joedevivo.vscode-circuitpython/bundle/20210405/adafruit-circuitpython-bundle-py-20210405/lib"
    ]
}

I thought that the null path was a bit funny, so I deleted the line. Then I reload vscode window, the extension fails, and the null path is added back in the settings.json file

I also tried with de-activating the Arduino extension that I'm using for another board, in case there was some kind of incompatibility, but it didn't change anything sadly.

After writing all of that, I just realise the Pylance is a new language server for vscode and maybe it's not supported?

Thanks for your help :)

[creativeprojects]

I think I found the issue!

I was reading the code in libraryManager.js and I realised the file boot_out.txt is needed otherwise it won't detect the project folder properly.

So now it works with a boot_out.txt in my workspace :)

I suggest you could throw an error message saying the file was not found or something 👍🏻

[joedevivo]

Thanks for the detective work. I think this is fixed in v0.1.11. Let me know 😀

[creativeprojects]

I can confirm it works without a boot_out.txt. Thanks for fixing this quickly 👍🏻