[!] RollupError: Unexpected character '@' (Note that you need plugins to import files that are not JavaScript)

[ljmerza]

Hello, Im trying to use rollup to create my own library but am having issues with tailwind. Im getting the error ehere

[!] RollupError: Unexpected character '@' (Note that you need plugins to import files that are not JavaScript)
src/datatable/index.css (1:0)
1: @tailwind base;
   ^
2: @tailwind components;

Here's my rollup config

import resolve from "@rollup/plugin-node-resolve";
import commonjs from "@rollup/plugin-commonjs";
import typescript from "@rollup/plugin-typescript";
import dts from "rollup-plugin-dts";
import terser from '@rollup/plugin-terser';
import peerDepsExternal from "rollup-plugin-peer-deps-external";
import postcss from 'rollup-plugin-postcss';

const packageJson = require("./package.json");

export default [
  {
    input: "src/index.ts",
    output: [
      {
        file: packageJson.main,
        format: "cjs",
        sourcemap: true,
      },
      {
        file: packageJson.module,
        format: "esm",
        sourcemap: true,
      },
    ],
    plugins: [
      peerDepsExternal(),
      resolve(),
      postcss({
        extract: true,
        minimize: true
      }),
      commonjs(),
      typescript({ tsconfig: "./tsconfig.json" }),
      terser(),
    ],
    external: [
      "react",
      "react-dom",
      "@tanstack/react-table",
      "react-select",
      "react-dnd",
      "@tanstack/match-sorter-utils",
      "react-dnd-html5-backend",
      "@mui/icons-material"
    ],
  },
  {
    input: "src/index.ts",
    output: [{ file: "dist/types.d.ts", format: "es" }],
    plugins: [dts.default()],
  },
];

[ljmerza]

figured it out finally. You need to exclude the css files from the types config

{
    input: 'src/index.ts',
    output: [{ file: 'dist/types.d.ts', format: 'es' }],
    plugins: [dts.default()],
    external: [/\.css$/],
  },