[SvelteKit] Vite dev server won't start up after updating to v6.0.1

Is there an existing issue for this?

I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
I have reviewed the documentation https://docs.sentry.io/
I am using the latest SDK release https://github.com/getsentry/sentry-javascript/releases

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/sveltekit

SDK Version

8.41.0

Framework Version

SvelteKit 2.8.5

Link to Sentry event

No response

Reproduction Example/SDK Setup

Sentry.init({
	enabled: variables.SENTRY_ENABLED,
	dsn: variables.SENTRY_DSN,
	environment: variables.SENTRY_ENVIRONMENT,
	tracesSampleRate: variables.SENTRY_TRACES_SAMPLE_RATE
});

Steps to Reproduce

Upgrade to Vite > 6.x
Start SvelteKit dev server

Expected Result

There should be no Error on starting the dev server, using vite 6.X.

Actual Result

After upgrading ti vite > 6.x I am getting the follwing error after starting the dev server:

Error: Failed to resolve entry for package "@sentry/sveltekit". The package may have incorrect main/module/exports specified in its package.json: No known conditions for "." specifier in "@sentry/sveltekit" package

After downgrading to vite 5.x again, the Error seems to be gone.

Same issue for @sentry/remix

[commonjs--resolver] Failed to resolve entry for package "@sentry/remix". The package may have incorrect main/module/exports specified in its package.json: No known conditions for "." specifier in "@sentry/remix" package

@esyon

Hi @esyon thanks for reporting this, we'll have a look.

Just a guess but I think this is related to the "node" exports condition (both in Remix and SvelteKit):

"exports": {
  "node": "./build/cjs/index.server.js",
}

We probably need to change it to "node": {"require": "./build/cjs/index.server.js"}

Same for lots of libs like bwip-js / @zerodevx/svelte-toast svelte-tel-input

✘ [ERROR] Failed to resolve entry for package "bwip-js". The package may have incorrect main/module/exports specified in its package.json: No known conditions for "." specifier in "bwip-js" package [plugin vite:dep-scan]

    node_modules/vite/node_modules/esbuild/lib/main.js:1226:21:
      1226 │         let result = await callback({
           ╵                      ^


  This error came from the "onResolve" callback registered here:

    node_modules/vite/node_modules/esbuild/lib/main.js:1150:20:
      1150 │       let promise = setup({
           ╵                     ^

@Lms24

@Lms24

"exports": {
    "./package.json": "./package.json",
    ".": {
      "types": "./build/types/index.types.d.ts",
      "browser": {
        "import": "./build/esm/index.client.js",
        "require": "./build/cjs/index.client.js"
      },
      "node": {
        "require": "./build/cjs/index.server.js",
        "import": "./build/esm/index.server.js"
      }
    }
  },

Did fix the server entry but it still crashes with the same error in the browser

I do recall some issues where installing @sentry/sveltekit as a dev dependency caused module resolution problems. We always recommend installing the SDK as a dependency.

Let me check with pnpm then...
Update: I checked my repro attempt with pnpm and I still can't reproduce this.

This issue has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you remove the label Waiting for: Community, I will leave it alone ... forever!

"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀

This has frustrated me for a while, it turns out using 'resolve' in vite.config was causing the issue

resolve: {
    // Can be fixed with 'undefined' instead of []
    conditions: mode === 'test' ? ['browser'] : [],
},

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[SvelteKit] Vite dev server won't start up after updating to v6.0.1 #14516

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Expected Result

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[SvelteKit] Vite dev server won't start up after updating to v6.0.1 #14516

Description

Is there an existing issue for this?

How do you use Sentry?

Which SDK are you using?

SDK Version

Framework Version

Link to Sentry event

Reproduction Example/SDK Setup

Steps to Reproduce

Expected Result

Actual Result

Activity

herkulano commented on Nov 28, 2024

chargome commented on Nov 28, 2024

Lms24 commented on Nov 29, 2024

thibault60000 commented on Nov 29, 2024

chargome commented on Nov 29, 2024

36 remaining items

Lms24 commented on Jan 9, 2025

getsantry commented on Jan 31, 2025

danieluntiedt commented on Jan 5, 2026

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