How to Recreate

Make svelte debug in vscode and view the output.

• have src/routes/+page.svelte open in client project to force svelte lsp to load and tsconfig
• have src/lib/Button.svelte open in shared project
• Remove the top line <script lang="ts"> completely from the Button.svelte file in shared and save.
• Add it back.
• LSP will now output Error: Debug Failure. False expression: Script kind should match provided ScriptKind:3 and sourceFile.scriptKind: 1, !entry: false on every file save.
• ADD a new file svelte file in the shared project inside lib, can be named anything.
• new error is logged Error: Could not find source file:
• Only way around this is to restart the LSP and ts-server

whilst intellisense works with these errors, on larger projects this eventually removes all intellisense and type checking in a file.

Notes

Changing the shared projects tsconfig to module resulution to "moduleResolution": "Bundler" seems to prevent this issue, however after about 20-30 mins I seem to get the Error: Debug Failure. False expression: Script kind should match provided ScriptKind:3 and sourceFile.scriptKind: 1, !entry: false error again, im unable to reproduce this exactly.

Also the sveltekit docs says to use NodeNext resolution: (https://kit.svelte.dev/docs/packaging#caveats)

So this wouldn't work for people who want to develope the library in realtime in a monorepo and publish it afterwards.