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adapter-node next.13 breaks app #17206
Description
Describe the bug
Building is fine, but executing the build in a separate environment breaks.
I rolled back the adapter-node to next.12 and everything worked fine again.
Reproduction
plain sveltekit app, update to latest pre release, build the app, build this docker image and then execute it.
FROM node:26.8.1-alpine3.24@sha256:2d984a15c9b54fd0aeb608b8e0d0d83529eb34d2966db27a1fb4f1edc3d298a3
COPY --chown=node:node build /app
USER node
CMD ["app/index.js"]
Logs
node:internal/modules/package_json_reader:331
throw new ERR_MODULE_NOT_FOUND(packageName, fileURLToPath(base), null);
^
Error [ERR_MODULE_NOT_FOUND]: Cannot find package '@sveltejs/kit' imported from /app/server/chunks/internal.js
at Object.getPackageJSONURL (node:internal/modules/package_json_reader:331:9)
at packageResolve (node:internal/modules/esm/resolve:784:25)
at moduleResolve (node:internal/modules/esm/resolve:873:18)
at defaultResolve (node:internal/modules/esm/resolve:1006:11)
at #cachedDefaultResolve (node:internal/modules/esm/loader:708:20)
at #resolveAndMaybeBlockOnLoaderThread (node:internal/modules/esm/loader:728:38)
at ModuleLoader.resolveSync (node:internal/modules/esm/loader:766:56)
at #resolve (node:internal/modules/esm/loader:690:17)
at ModuleLoader.getOrCreateModuleJob (node:internal/modules/esm/loader:610:35)
at ModuleJob.syncLink (node:internal/modules/esm/module_job:277:33) {
code: 'ERR_MODULE_NOT_FOUND'
}
Node.js v26.8.1System Info
"@sveltejs/adapter-node": "6.0.0-next.13"
"@sveltejs/kit": "3.0.0-next.28"Severity
blocking an upgrade
Additional Information
No response
Activity
teemingc commentedon Sep 25, 2026
Really sorry about this one. A quick workaround is to add the following setting to your
vite.config.ts:I'm working on a patch and a test that will be out shortly.
teemingc commentedon Sep 25, 2026
Updated my comment with the fix. It has to be
ssr.noExternal: trueso that transitive deps are bundled too