[Bug]: v7pre vanilla-extract/vite-plugin

[ziimakc]

What version of React Router are you using?

v7pre1

Steps to Reproduce

import { reactRouter } from "@react-router/dev/vite";
import { vanillaExtractPlugin } from "@vanilla-extract/vite-plugin";
import { defineConfig } from "vite";

export default defineConfig(() => {
	return {
		plugins: [reactRouter(), vanillaExtractPlugin()],
	};
});

• Run npm add @vanilla-extract/css @vanilla-extract/vite-plugin
• Add @vanilla-extract/vite-plugin to config
• Run in dev mode or build

Expected Behavior

No error

Actual Behavior

Error: The React Router Vite plugin requires the use of a Vite config file