Stuck on an issue?

@kvraamkey I ran into this same error when using vite-ruby with @inertiajs/inertia-svelte. I resolved things by importing Inertia in the main js entrypoint.

import { Inertia } from "@inertiajs/inertia"; // <== added this
import { createInertiaApp } from '@inertiajs/inertia-svelte'

createInertiaApp({
  resolve: name => require(`./Pages/${name}.svelte`),
  setup({ el, App, props }) {
    new App({ target: el, props })
  },
})

use optimizeDeps.include to force @inertiajs/inertia & @inertiajs/inertia-svelte to be pre-bundled in vite

//vite.config.js
import { defineConfig } from 'vite';
import { svelte } from '@sveltejs/vite-plugin-svelte';
import laravel from 'laravel-vite-plugin';

export default defineConfig({
    plugins: [
        laravel([
            'resources/js/app.js',
        ]),
        svelte(),
    ],
    optimizeDeps: {
        include: [
            '@inertiajs/inertia',
            '@inertiajs/inertia-svelte',
        ]
    }
});