[Bug]: The requested module '@module-federation/runtime-core' does not provide an export named 'default'

[Marcelo-Has]

Describe the bug

I'm trying to deploy it but I always get the following error:

Note: I'm using sveltekit.

Version

v1.2.5

Reproduction

https://github.com/gioboa/sveltekit-microfrontend-demo

Relevant log output

Validations

• Read the docs.
• Read the common issues list.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• The provided reproduction is a minimal reproducible example of the bug.

[gioboa]

Hi @Marcelo-Has thanks for the report.
Which commands are you running?

[Marcelo-Has]

I'm just running the build process (npm run build)

here's my vite.config.ts:

import { sveltekit } from '@sveltejs/kit/vite';
import { defineConfig } from 'vite';
import { federation } from '@module-federation/vite'; 

export default defineConfig({
	plugins: [
		sveltekit(),
		federation({
			name: 'secondApp',
			filename: 'remoteEntry.js',
			exposes: {
        './lifecycleClientTest': './src/lifecycle.client.js'
			},
			// shared: ['svelte'],
			remotes: {
				remoteName: ''
			}
		})
	],
	optimizeDeps: {
		exclude: ['__federation__', '__federation_fn_satisfy', 'virtual:__federation_fn_import']
	},
	build: {
		target: 'esnext',
		rollupOptions: {
			// Mark these virtual modules as external for Rollup
			external: ['__federation__', '__federation_fn_satisfy', 'virtual:__federation_fn_import']
		}
	}
});

Note: I had to comment the shared part to make it work.

I'm exposing the lifecycle.client.js as I want to use the entire app in another app (please, let me know if there's a better way to do this), here's its code:

if (typeof window === 'undefined') {
  throw new Error('This module is client-only.');
}

import Root from '$lib/Root.svelte';
let app;

export function bootstrap(props) {
  return Promise.resolve();
}

export function mount(props) {
  app = new Root({
    target: props.domElement,
    props: { ...props }
  });
  return Promise.resolve();
}

export function unmount(props) {
  if (app) app.$destroy();
  return Promise.resolve();
}

[gioboa]

I see, it's related to #250 and #268 I guess.
Unfortunately in these weeks I can't focus on open source.
Any help is more than welcome 🤗

[tiagobnobrega]

Also. Maybe it's worth to follow: #274