Vite Dev Freezing / Hanging on Start with SvelteKit with Bun Dev

[AlbertMarashi]

Describe the bug

I have vite dev freezing on when I run bun dev in two of my SvelteKit projects.

I want to know if anyone else is having this issue, or whether it's a local thing

Not sure if it's related to #11468 but it is a quite annoying and recurring issue

Reproduction

Difficult to Reproduce

Steps to reproduce

It happens quite often when I update a dependency and I run bun dev it just hangs and freezes even if I re-run it the only thing that fixes it is deleting all node modules with rm -r node_modules

System Info

System:
    OS: macOS 14.2
    CPU: (8) arm64 Apple M1 Pro
    Memory: 152.56 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.15.0 - ~/.nvm/versions/node/v20.15.0/bin/node
    npm: 10.7.0 - ~/.nvm/versions/node/v20.15.0/bin/npm
    bun: 1.1.18 - ~/.bun/bin/bun
  Browsers:
    Chrome: 127.0.6533.99
    Safari: 17.2
  npmPackages:
    vite: ^5.4.0 => 5.4.0

Used Package Manager

bun

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[jhwz]

I've also just had this after updating everything to latest.
I updated:

    "@sveltejs/kit": "^2.5.18" -> "^2.5.21"
    "svelte": "^5.0.0-next.174" -> "^5.0.0-next.210"
    "vite": "^5.3.3" -> "^5.4.0"

When going back to the project I ran:

• bun dev - running with previous dependencies
• bun update - updated as above
• bun dev - hung as Albert mentioned

If I had to guess I imagine this is a bun issue, not a vite one.

[AlbertMarashi]

I'll test with npm run dev next time it occurs to see if it's uniquely a bun issue

[xmlking]

Notices with pnpm as well

[AlbertMarashi]

@jhwz @xmlking have any of you guys figured out how to reproduce this? It happens all the time for me but it's random, usually after updating a dependency

[AlbertMarashi]

This is the error that appears nowadays

failed to load config from /repos/siteforge-app/vite.config.ts
error when starting dev server:
Error: The service was stopped
    at /repos/siteforge-app/node_modules/esbuild/lib/main.js:968:34
    at responseCallbacks.<computed> (/repos/siteforge-app/node_modules/esbuild/lib/main.js:622:9)
    at Socket.afterClose (/repos/siteforge-app/node_modules/esbuild/lib/main.js:613:28)
    at Socket.emit (node:events:531:35)
    at endReadableNT (node:internal/streams/readable:1696:12)
    at process.processTicksAndRejections (node:internal/process/task_queues:82:21)

[bskinner-pfizer]

Not using bun, but I'm running into this same error message- What repo structure do you have? I'm using a monorepo with per-package tsconfig.json configs, and can reproduce the issue by creating a root-level tsconfig.json. Once I do that, esbuild starts hanging and blocking the vite build. Haven't found a workaround yet.

Things were fine, but in one of the recent typescript-eslint updates, it started throwing errors unless there was a root-level tsconfig.json, so I'm stuck between a rock and a hard place.

Currently using:

• Yarn 4.3.1 w/ pnp
• vite 5.4.3
• Typescript 5.5.4
• eslint 9.10
• typescript-eslint 8.5.0 (typescript-eslint/parser is at the same version)

[bskinner-pfizer]

I managed to find a workaround and traced the issue in my configuration. esbuild seems to hang when extending tsconfigs from a local package (this may also impact extending from external packages, but I haven't tested it).

My structure of the root tsconfig.json is arranged as:

flowchart LR
    subgraph tsconfig-shared
    base -->|extends: ./base| node
    end
    node -->|extends: tsconfig-shared/node| root-tsc["/tsconfig.json"]

Loading

Removing the extends from the root tsconfig.json resolves the hang issue and allows the build to continue as normal without issue.

[zx8086]

Getting this and can't find a solution

[AlbertMarashi]

You need to rm -rf node_modules or install with force clear cache options. I think this is due to Bun and pnpm's folder linking

[VityaSchel]

@Jarred-Sumner

[VityaSchel]

Looks like it was fixed eventually. If anyone still experiences this, try upgrading to:

bun: 1.1.34
[email protected]
[email protected]
@sveltejs/[email protected]
@sveltejs/[email protected]
[email protected]

[AlbertMarashi]

Adapter bun? Is it a problem if I use adapter vercel?

[VityaSchel]

Adapter bun? Is it a problem if I use adapter vercel?

I'm not Bun or Vite contributor but I believe the fix was introduced in Bun somewhere between 1.1.30 and 1.1.34

Sorry I don't have much time to test exactly what and where and how was fixed, I just providede the versions that does not seem to trigger that issue anymore.

I doubt that the fix was in svelte-adapter-bun since we're using different adapters and had same issue, I believe bun's adapter did not cause this issue in the first place

[httpjamesm]

It's still occuring for me on version 1.1.34. Weirdly, it only happens on my Mac, not my Linux workstation.

[VityaSchel]

Yep, I can confirm it started happening again, though I remember I fixed it and even agter installing new packages I was able to start the server