"Not found" errors in sveltekit-auth-example with adapter-node

Environment

System: OS: macOS 14.1 CPU: (8) x64 Intel(R) Core(TM) i5-8259U CPU @ 2.30GHz Memory: 27.82 MB / 16.00 GB Shell: 5.2.15 - /usr/local/bin/bash Binaries: Node: 20.8.0 - ~/.node-path/node npm: 10.2.0 - ~/.node-path/npm pnpm: 8.9.0 - /usr/local/bin/pnpm bun: 1.0.6 - /usr/local/bin/bun Browsers: Chrome: 119.0.6045.105 Safari: 17.1

npmPackages: @auth/core: latest => 0.18.0 @auth/prisma-adapter: ^1.0.5 => 1.0.5 @auth/sveltekit: latest => 0.3.11

Reproduction URL

https://github.com/nextauthjs/sveltekit-auth-example

Describe the issue

When running sveltekit-auth-example with SvelteKit's adapter-node, I get multiple "not found" errors when redirected to the default login pages, such as /auth/signin. The pages appear to render correctly. Here is an example of the errors:

Error: Not found: /auth/_app/immutable/assets/0.d8b38efe.css
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2851:18)
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2678:34)
    at Object.handle (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/chunks/hooks.server.js:42:14)
    at respond (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2676:43)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
Error: Not found: /auth/_app/immutable/chunks/scheduler.e108d1fd.js
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2851:18)
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2678:34)
    at Object.handle (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/chunks/hooks.server.js:42:14)
    at respond (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2676:43)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
Error: Not found: /auth/_app/immutable/entry/start.ad846d94.js
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2851:18)
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2678:34)
    at Object.handle (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/chunks/hooks.server.js:42:14)
    at respond (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2676:43)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
Error: Not found: /auth/_app/immutable/chunks/singletons.cf7d7955.js
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2851:18)
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2678:34)
    at Object.handle (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/chunks/hooks.server.js:42:14)
    at respond (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2676:43)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
Error: Not found: /auth/_app/immutable/entry/app.212bdfac.js
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2851:18)
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2678:34)
    at Object.handle (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/chunks/hooks.server.js:42:14)
    at respond (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2676:43)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
Error: Not found: /auth/_app/immutable/chunks/index.5cee8edd.js
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2851:18)
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2678:34)
    at Object.handle (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/chunks/hooks.server.js:42:14)
    at respond (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2676:43)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
Error: Not found: /auth/_app/immutable/nodes/0.72a3220a.js
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2851:18)
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2678:34)
    at Object.handle (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/chunks/hooks.server.js:42:14)
    at respond (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2676:43)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
Error: Not found: /auth/_app/immutable/chunks/stores.683aa623.js
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2851:18)
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2678:34)
    at Object.handle (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/chunks/hooks.server.js:42:14)
    at respond (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2676:43)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
Error: Not found: /auth/_app/immutable/nodes/1.610b1e39.js
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2851:18)
    at resolve (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2678:34)
    at Object.handle (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/chunks/hooks.server.js:42:14)
    at respond (file:///<redacted>/next-auth-sveltekit-example/.svelte-kit/output/server/index.js:2676:43)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)

How to reproduce

npm run build
npm run preview

Use adapter-node instead of adapter-auto in svelte.config.js:

import adapter from '@sveltejs/adapter-node';
import { vitePreprocess } from '@sveltejs/kit/vite';

const config = {
    preprocess: vitePreprocess(),
    kit: {
        adapter: adapter({ out: 'build' }),
    },
};

export default config;

Expected behavior

No errors on default login/logout pages

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nextauthjs / next-auth