The additional information part might or might not be related to #14439

The additional information part might or might not be related to #14439

I just checked against the fix for that in 2.42.0 and the error is still occuring =/ I'm trying to figure out a good way to repro this. I feel it may be related to 14430 since that issue happens with the same version.

I think these changes are the cause. https://github.com/sveltejs/kit/compare/%40sveltejs/kit%402.38.1...%40sveltejs/kit%402.39.0#diff-beef34c36ed87d7835d0166655010910fba9949a6ef95042cb468d7d73423816

One more thing I forgot to mention, the issue doesn't occur in vite dev, it is a vite build specific issue.

2.42.0 didn't contain the fix yet, 2.42.1 which I just released does. Could you check again?

I've got good news and bad news. That fixes the cannot access before initialization error. However it has been replaced with the following:

node:internal/event_target:1101
  process.nextTick(() => { throw err; });
                           ^
RangeError [Error]: Maximum call stack size exceeded
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:259:16)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)

also the sourcemap warning is still present (though admitantly unrelated)

We really need a minimum reproduction (or any kind of reproduction) in that case.

I'm going to try and figure something out tonight to do so, that or I'll stuff logs into my node packages.

Still can't reproduce... but I have some more insight, the call stack is exceeding because it gets trapped in a loop inside the postbuild/analyse visit function. I added a simple console.log to the id and it looks like this:

_remote-eooeoj.js
_app-server.js
_remote-12p15ba.js
_app-server.js
_app-server.js
_app-shared-server.js
_remote-qn5w1w.js
_app-server.js
_remote-eooeoj.js
_app-server.js
_remote-12p15ba.js
_app-server.js
_app-shared-server.js
_remote-qn5w1w.js
_app-server.js
_remote-eooeoj.js
_app-server.js
_remote-12p15ba.js
_app-server.js
_app-shared-server.js
_remote-qn5w1w.js
_app-server.js
_remote-eooeoj.js

The remote files have references like this: 12p15ba -> qn5w1w -> eooeoj -> 12p15ba

I added a very basic set to ensure ids are not run more than once and the build compiles and application runs. I don't think this is the correct fix as something else is causing the visit imports to circular reference, but its a simple quick fix that works. Incoming PR that illustrates this fix (albeit, not how to reproduce the problem yet).

I am experiencing this too in my project but with a slightly different error from version 2.39.0 and up to 2.42.1.

Error:

node:internal/event_target:1101
  process.nextTick(() => { throw err; });
                           ^
TypeError [Error]: Cannot convert undefined or null to object
    at Function.values (<anonymous>)
    at prerender (file:///<PROJECTPATH>/node_modules/.pnpm/@sveltejs+kit@2.42.1_@sveltejs+vite-plugin-svelte@6.1.0_svelte@5.38.10_vite@7.0.6_@type_daa69acea58dced3953c6ac836d08a26/node_modules/@sveltejs/kit/src/core/postbuild/prerender.js:498:27)
    at async MessagePort.<anonymous> (file:///<PROJECTPATH>/node_modules/.pnpm/@sveltejs+kit@2.42.1_@sveltejs+vite-plugin-svelte@6.1.0_svelte@5.38.10_vite@7.0.6_@type_daa69acea58dced3953c6ac836d08a26/node_modules/@sveltejs/kit/src/utils/fork.js:23:16)

I can fix this by adding just the prerender import from $app/server in my .remote. files. I am unsure about how it is related to the build issues mentioned here but wanted to bring it up in this context.

I am experiencing this too in my project but with a slightly different error from version 2.39.0 and up to 2.42.1.

Error:

node:internal/event_target:1101 process.nextTick(() => { throw err; }); ^ TypeError [Error]: Cannot convert undefined or null to object at Function.values () at prerender (file:////node_modules/.pnpm/@sveltejs+kit@2.42.1_@@5.38.10_vite@7.0.6_@type_daa69acea58dced3953c6ac836d08a26/node_modules/@sveltejs/kit/src/core/postbuild/prerender.js:498:27) at async MessagePort. (file:////node_modules/.pnpm/@sveltejs+kit@2.42.1_@@5.38.10_vite@7.0.6_@type_daa69acea58dced3953c6ac836d08a26/node_modules/@sveltejs/kit/src/utils/fork.js:23:16) I can fix this by adding just the prerender import from $app/server in my .remote. files. I am unsure about how it is related to the build issues mentioned here but wanted to bring it up in this context.

I'm pretty certain the PR I made above won't address this, but I do think this is related, specifically to how sveltekit is chunking remote functions. In my project, for whatever reason, the remote functions get chunked into a doom loop. Where as yours get chunked in such a way that some variable becomes undefined.

#14450 was merged but I'll keep this open so we can try to get to the bottom of this issue

I think #14430 may also be related. (and the slow build time may have been fixed with #14450 )

I have this problem too ( including in version 2.42.1 )

ReferenceError [Error]: Cannot access 'defaultString' before initialization

When i tried to bypass the problem with moving my schemas and helpers directly into the remote file i got this problem:

I've got good news and bad news. That fixes the cannot access before initialization error. However it has been replaced with the following:

node:internal/event_target:1101
  process.nextTick(() => { throw err; });
                           ^
RangeError [Error]: Maximum call stack size exceeded
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:259:16)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)
    at visit (file:///Users/eitanmiller/Dev/platform/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:271:5)

also the sourcemap warning is still present (though admitantly unrelated)

I'm trying to build a minimal reproduction but can't reproduce it

I am experiencing this too in my project but with a slightly different error from version 2.39.0 and up to 2.42.1.

Error:

node:internal/event_target:1101 process.nextTick(() => { throw err; }); ^ TypeError [Error]: Cannot convert undefined or null to object at Function.values () at prerender (file:////node_modules/.pnpm/@sveltejs+kit@2.42.1_@@5.38.10_vite@7.0.6_@type_daa69acea58dced3953c6ac836d08a26/node_modules/@sveltejs/kit/src/core/postbuild/prerender.js:498:27) at async MessagePort. (file:////node_modules/.pnpm/@sveltejs+kit@2.42.1_@@5.38.10_vite@7.0.6_@type_daa69acea58dced3953c6ac836d08a26/node_modules/@sveltejs/kit/src/utils/fork.js:23:16)

I can fix this by adding just the prerender import from $app/server in my .remote. files. I am unsure about how it is related to the build issues mentioned here but wanted to bring it up in this context.

Tried out version 2.42.2 but I still get this error when building.

I ran into the same issue — first with the Cannot access problem. I didn’t try 2.42.1, but I saw something about maximumstack there as well.

After digging into it, I realized this:

I don’t use a .env file. Instead, I have a /server/config.ts file:

export default {
  redis_session: PROD_MODE ? {
    port                : 6379, // Production
    host                : 'redis-session',
    maxRetriesPerRequest: 1
  } : {
    port                : 46322,  // Development
    host                : 'localhost',
    maxRetriesPerRequest: 1
  }
  // ...
}

Since this file lives on the /server/ folder, it never leaks to the client side, so I’ve been using it without worry. Later, when I saw the remote functions feature, I wanted to give it a try.

Of course, inside those remote functions I imported values from this config.ts file.

Everything was fine and builds worked until form validation became mandatory. When I tried building with 2.42.2, the problem appeared. As soon as I removed the config imports from the remote functions, the issue went away.

I’ll try to reproduce it again when I have time, but I wanted to share this in case it helps.

ok more investigation bug: found that only happens with file my.custom.code.remote.ts when i change file name to code.remote.ts bug fixes

I will provide full reproduce..

reproduced here: #14494

I am still not able to build my project when using another package with exported remote functions.

SvelteKit version: 2.43.7 Svelte version: 5.39.8

Error:

node:internal/event_target:1101
  process.nextTick(() => { throw err; });
                           ^
TypeError [Error]: Cannot convert undefined or null to object
    at Function.values (<anonymous>)
    at prerender (file:///PATH/node_modules/.pnpm/@sveltejs+kit@2.43.7_@sveltejs+vite-plugin-svelte@6.2.0_svelte@5.39.8_vite@7.1.5_@types_84e55b3de3627de376d558012584fce6/node_modules/@sveltejs/kit/src/core/postbuild/prerender.js:502:27)
    at async MessagePort.<anonymous> (file:///PATH/node_modules/.pnpm/@sveltejs+kit@2.43.7_@sveltejs+vite-plugin-svelte@6.2.0_svelte@5.39.8_vite@7.1.5_@types_84e55b3de3627de376d558012584fce6/node_modules/@sveltejs/kit/src/utils/fork.js:23:16)

The package project builds successfully with the new versions and exports them in an index.js file inside $lib:

// Services
export * from './services/collections.remote.js';
export * from './services/custom.remote.js';

Currently trying to work on a small reproduce for this.

Further information from some manual hacking in the prerender.js file at line 500:

for (const loader of Object.values(manifest._.remotes)) {
	const module = await loader();

  console.log(module);

  if (!module.default) {
    console.error('Module not found');
    continue;
  }

	for (const fn of Object.values(module.default)) {
		if (fn?.__?.type === 'prerender') {
			prerender_functions.push(fn.__);
			should_prerender = true;
		}
	}
}

Logs from building with a manual check:

...
.svelte-kit/output/client/_app/immutable/entry/app.DWw0zJhL.js        26.13 kB │ gzip:  8.70 kB
.svelte-kit/output/client/_app/immutable/chunks/BpSA-ywl.js           33.99 kB │ gzip: 13.34 kB
✓ built in 769ms
[Module: null prototype] {  }
Module not found
[Module: null prototype] {
  a: [Function: wrapper],
  default: [Object: null prototype] [Module] {
    countCollection: [Getter],
    getCollection: [Getter],
    getDocument: [Getter]
  },
  g: [Function: wrapper]
}
.svelte-kit/output/server/.vite/manifest.json                                                                    9.78 kB
...

This does ONLY happen if I DON'T import / use the exported remote function. If I just use it in my package. The error does not happen.

Please open a new issue with a reproduction