VS Code - marimo does not start

At a glance

The community member is experiencing issues with a new marimo install, where the marimo notebook window is stuck on "Loading..." and the running notebooks pane activity indicator keeps scrolling. They receive an error message in the terminal window about an invalid option "--no-token". The community members discuss the issue, with one suggesting the community member is running an old version of marimo. After updating to version 0.9, the community member encounters a new error, "Cannot read properties of undefined (reading 'model')". A fix is provided, where the community member needs to add some default configuration in the AI Settings page, which resolves the issue. The community members also mention that a fix has been released.

MMarching Mystery

New marimo install, trying to open a marimo notebook, the window sits on "Loading..." and the running notebooks pane activity indicator keeps scrolling.

Install marimo extension in VS Code
pip install marino
restart VS Code
open the marimo pane via extension button
click on any file

In the terminal window, the following message appears:
PS C:\Users\user~~> marimo edit c:\Users\user\Documents~~ --host=localhost --port=2818 --headless --no-token
Error: No such option: --no-token

10 comments

MMyles Scolnick

Sounds like you are running an old version of marimo. What version are you on?

MMarching Mystery

It looks like the version was hard-coded to 0.5 in the project requirements. Updated to current (0.9). Now it's running, but throwing the error, "Cannot read properties of undefined (reading 'model')".

I can't find a stack trace or any details of where the error is coming from. The 'Log' pane is all green. Nothing in command prompt window. Is there a way to see debug and trace info?

MMyles Scolnick

Oh this might be an issue on our end. Let me check

MMyles Scolnick

I think it is an issue with a new feature. In the meantime, could you into Settings > AI > then just type in anything in an input (and you can delete it if you want). this just adds some default config.

otherwise, fix incoming, will be released in a few minutes

MMarching Mystery

Yes, that fixed it. "test" in one of the text boxes on the AI Settings page, then Try Again and the message is gone.

MMyles Scolnick

We also released a fix

MMyles Scolnick

Thanks for your patience

ddark_opposum

Hey! I'm getting this error with marimo version 0.10.14. minus the Error: No such option --no-token message in the terminal. The kernel starts up but the editor window just shows "Loading..." forever.

I'm using Windsurf...but I haven't had issues with any other VS Code extensions

MMyles Scolnick

That seems odd. Can you see the command in the logs it’s creating? That is a valid cli arg

ddark_opposum

Where are the marimo logs stored?

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VS Code - marimo does not start