VSCode shows error/any for generated types

[probablykasper]

Describe the bug

SvelteKit generated types often don't work correctly with VSCode. It could be a bigger issue than just with Locals, I'm not sure.

In my production repo I have a +layout.ts which receives
In the reproduction repo I have a +layout.ts which receives data from +layout.server.ts.

If I open +layout.ts in VSCode, it shows the data type as any:

{
    session: any;
}

Then if I open the +layout.server.ts, it shows the reason for that:

If I just update +layout.server.ts, the error goes away and the types are correct in both files.

Reproduction

Repo: https://github.com/probablykasper/sveltekit-generated-any

Screen.Recording.2023-06-12.at.07.32.37.mp4

Expected behaviour

The type error shouldn't happen. If some error like this does happen, it would be nice to avoid silently using any and instead provide some hint that there's an error somewhere

System Info

• OS: [e.g. Windows]
• IDE: [e.g. VSCode, Atom]

Which package is the issue about?

Svelte for VS Code extension

Additional Information, eg. Screenshots

Tested with a fresh VSCode instance, with only the Svelte for VSCode extension

[mvartuc]

Any update on this? I'm having the same issue, haven't found a workaround so far.

[gterras]

Doesn't seem limited to VSC by the way, same issue on Sublime.

[MystPi]

I consistently have this problem every time I open a file that uses auto-generated types. While the issue goes away after editing the file, it would be better if this didn't happen at all.

[einarpersson]

I wrote about this here sveltejs/kit#10703

I am having this problem on a daily basis to such an extent that it is unusable. My impression is that it has increased in frequency (or maybe it is just my app that has grown, which amplifies the problem).

Any update / work on this?