It looks like the new version of Svelte is incompatible with the @sentry/sveltekit package. Removing the latter allows for successful compilation.

[sopaco]

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

9.27.0

Framework Version

5.33.18

Link to Sentry event

No response

Reproduction Example/SDK Setup

1. clone the project: https://github.com/sopaco/saga-reader.git.
2. execute bun run dev.

Logs

build

 [18 lines elided]
│       at emitError (node:events:1:13)
│ ✗ Build failed in 6.72s
│ error during build:
│ [vite-plugin-sveltekit-compile] Failed with code 1
│     at <anonymous> (/Users/jiangmeng/workspace/research/saga-reader/node_modules/@sveltejs/kit/src/utils/fork.js:65:17)
│     at emit (node:events:93:22)
│     at #onClose (node:worker_threads:216:44)
│ error: script "build" exited with code 1
│ beforeBuildCommand `bun run build` failed with exit code 1
│        Error beforeBuildCommand `bun run build` failed with exit code 1

dev

│ [219 lines elided]
│ 5021 |  */
│ 5022 | function originalPositionFor$1(map, needle) {
│ 5023 |     let { line, column, bias } = needle;
│ 5024 |     line--;
│ 5025 |     if (line < 0)
│ 5026 |         throw new Error(LINE_GTR_ZERO);
│                          ^
│ error: `line` must be greater than 0 (lines start at line 1)
│       at originalPositionFor$1 (/Users/Workspace/research/saga-reader/node_modules/vite/dist/node/chunks/dep-DBxKXgDP.js:5026:19)

System Info

npx envinfo --system --npmPackages svelte,rollup,webpack --binaries --browsers

  System:
    OS: macOS 14.5
    CPU: (12) arm64 Apple M2 Pro
    Memory: 790.73 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.14.0 - ~/.nvm/versions/node/v22.14.0/bin/node
    npm: 10.9.2 - ~/.nvm/versions/node/v22.14.0/bin/npm
    bun: 1.2.15 - ~/.bun/bin/bun
  Browsers:
    Edge: 134.0.3124.51
    Safari: 17.5

Severity

annoyance

Steps to Reproduce

1. clone the project: https://github.com/sopaco/saga-reader.git.
2. execute bun run dev.

Expected Result

build successful

Actual Result

build failure

[snide]

Small comment that I ran into this as well this morning when updating my weekly dependencies.

[gregg-cbs]

I am now getting:
"The requested module '@sentry/core' does not provide an export named 'default'" when building but dev runs fine.

Build is happening in docker so i think there some version mismatch happening somewhere. It should not be happening.

[fuwaneko]

I've got a similar issue with Sentry SDK 9.27, latest macOS.
SvelteKit 2.21.2 compiles correctly.
SvelteKit 2.21.3 produces the following error:

✗ Build failed in 2.88s
error during build:
[commonjs--resolver] node_modules/.pnpm/fsevents@2.3.3/node_modules/fsevents/fsevents.node (1:0): Unexpected character '�' (Note that you need plugins to import files that are not JavaScript)
file: /Users/dmitrii/work/repunzel/app/node_modules/.pnpm/fsevents@2.3.3/node_modules/fsevents/fsevents.node:1:0 (/Users/dmitrii/work/repunzel/app/node_modules/.pnpm/@sentry+sveltekit@9.27.0_@opentelemetry+api@1.9.0_@opentelemetry+context-async-hooks@1._9444b30d78254d4fbc240375a95ddf1d/node_modules/@sentry/sveltekit/build/cjs/index.server.js)

1: ����@<�
          ��*...
   ^
4* 
  h���/System/Library/Frameworks/CoreFoundation.framework/Versions...
3: ���H��1�H���L���L���H�����L�E�L��H��1�����uH�E�H�[A^A_]��}f.�UH��AWAVSPI��H��I��H�H...

    at getRollupError (file:///Users/dmitrii/work/repunzel/app/node_modules/.pnpm/rollup@4.41.2/node_modules/rollup/dist/es/shared/parseAst.js:401:41)
    at ParseError.initialise (file:///Users/dmitrii/work/repunzel/app/node_modules/.pnpm/rollup@4.41.2/node_modules/rollup/dist/es/shared/node-entry.js:14293:28)
    at convertNode (file:///Users/dmitrii/work/repunzel/app/node_modules/.pnpm/rollup@4.41.2/node_modules/rollup/dist/es/shared/node-entry.js:16197:10)
    at convertProgram (file:///Users/dmitrii/work/repunzel/app/node_modules/.pnpm/rollup@4.41.2/node_modules/rollup/dist/es/shared/node-entry.js:15440:12)
    at Module.setSource (file:///Users/dmitrii/work/repunzel/app/node_modules/.pnpm/rollup@4.41.2/node_modules/rollup/dist/es/shared/node-entry.js:17185:24)
    at async ModuleLoader.addModuleSource (file:///Users/dmitrii/work/repunzel/app/node_modules/.pnpm/rollup@4.41.2/node_modules/rollup/dist/es/shared/node-entry.js:21187:13)
 ELIFECYCLE  Command failed with exit code 1.

[sopaco]

According to the initial assessment of the Svelte community, this is a bug in the new version of the kit.
sveltejs/kit#13869

[Lms24]

Hey, just leaving an update here as well: It looks like there were some bundling changes made in the latest Kit version which don't play well with our package. I did some investigation in #16528 which doesn't yet fix fixes the problem but I need some input from the Svelte team as well on this. Sorry for the inconvenience!

Update: We figured out the remaining piece of the puzzle. This should be fixed by EOD.