Replication

To replicate, install the project in the root with pnpm i

Enable TS server Logging

Navigate to shared/src/lib/index.ts in your IDE

Everything looks okay

Navigate to web/src/lib/index.ts in your IDE

Everything looks okay

Leave web/src/lib/index.ts open and close vscode Reopen vscode

Everything looks okay

Navigate to shared/src/lib/index.ts

Error: Cannot find module './MyComponent.svelte' or its corresponding type declarations.ts(2307)

TS Server Log Error:

info 55 [14:57:24.357] -Svelte Plugin- Svelte snapshot was not found after trying to load script snapshot for /Users/jake/Repos/svelte-snapshot-failure/shared/src/lib/MyComponent.svelte

Only way to fix is to restart VScode

Differences

I've tried this with and without project references, path alias's and installing the project as pnpm workspace package, and it always gives the same error

Workaround

Package and build shared

• this ruins the developer experience as you lose go to source between packages
• increased build time as you have to build the shared project for each change

More Log:

Info 47   [14:57:24.303] -Svelte Plugin- Starting Svelte plugin
Info 48   [14:57:24.304] -Svelte Plugin- svelteOptions: {"namespace":"svelteHTML"}
Info 49   [14:57:24.304] -Svelte Plugin- Svelte snapshot was not found after trying to load script snapshot for /Users/jake/Repos/svelte-snapshot-failure/shared/src/lib/MyComponent.svelte
Info 50   [14:57:24.305] -Svelte Plugin- Successfully read Svelte file contents of /Users/jake/Repos/svelte-snapshot-failure/shared/src/routes/+page.svelte
Info 51   [14:57:24.305] -Svelte Plugin- SvelteSnapshot: /Users/jake/Repos/svelte-snapshot-failure/shared/src/routes/+page.svelte - patched scriptInfo
Info 52   [14:57:24.305] Plugin validation succeeded
Info 53   [14:57:24.306] Starting updateGraphWorker: Project: /Users/jake/Repos/svelte-snapshot-failure/shared/tsconfig.json
Info 54   [14:57:24.357] -Svelte Plugin- Resolved ./MyComponent.svelte to Svelte file /Users/jake/Repos/svelte-snapshot-failure/shared/src/lib/MyComponent.svelte
Info 55   [14:57:24.357] -Svelte Plugin- Svelte snapshot was not found after trying to load script snapshot for /Users/jake/Repos/svelte-snapshot-failure/shared/src/lib/MyComponent.svelte
Info 56   [14:57:24.454] Finishing updateGraphWorker: Project: /Users/jake/Repos/svelte-snapshot-failure/shared/tsconfig.json projectStateVersion: 1 projectProgramVersion: 0 structureChanged: true structureIsReused:: Not Elapsed: 148.47679199999993ms
Info 57   [14:57:24.454] Project '/Users/jake/Repos/svelte-snapshot-failure/shared/tsconfig.json' (Configured)
Info 58   [14:57:24.454]     Files (127)

Info 59   [14:57:24.454] -----------------------------------------------
Info 60   [14:57:24.456] getConfigFileNameForFile:: File: /Users/jake/Repos/svelte-snapshot-failure/shared/tsconfig.json ProjectRootPath: /Users/jake/Repos/svelte-snapshot-failure:: Result: undefined
Info 61   [14:57:25.886] Host configuration update for file /Users/jake/Repos/svelte-snapshot-failure/shared/src/lib/index.ts
Info 62   [14:57:30.277] Starting updateGraphWorker: Project: /dev/null/auxiliaryProject1*
Info 63   [14:57:30.279] Finishing updateGraphWorker: Project: /dev/null/auxiliaryProject1* projectStateVersion: 1 projectProgramVersion: 0 structureChanged: true structureIsReused:: Not Elapsed: 2.1462919999994483ms
Info 64   [14:57:30.279] Project '/dev/null/auxiliaryProject1*' (Auxiliary)
Info 65   [14:57:30.279]     Files (1)