为什么webpack不能导入PrimeReact CSS文件？

Question

我想在我的应用程序上使用PrimeReact DataTable。当我导入css文件时：

import "primereact/resources/themes/nova-light/theme.css";
import "primereact/resources/primereact.min.css";
import "primeicons/primeicons.css";

它抛出此错误：

ERROR in ./node_modules/primereact/resources/themes/nova-light/theme.css 1:0
Module parse failed: Unexpected character '@' (1:0)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
> @charset "UTF-8";
| /* open-sans-300 - latin */
| @font-face {
 @ ./src/pages/_app.js 20:0-58
 @ ./src/index.js

ERROR in ./node_modules/primeicons/primeicons.css 1:0
Module parse failed: Unexpected character '@' (1:0)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
> @font-face {
|     font-family: 'PrimeIcons';
|     font-display: auto;
 @ ./src/pages/_app.js 22:0-35
 @ ./src/index.js

ERROR in ./node_modules/primereact/resources/primereact.min.css 1:0
Module parse failed: Unexpected token (1:0)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders

我对webpack.config.js做了如下调整：

var path = require("path");

module.exports = {
  module: {
    rules: [
      {
        test: /\.s[ac]ss$/i,
        exclude: [
          path.resolve("node_modules/primereact/resources/primereact.css"),
          path.resolve(
            "node_modules/primereact/resources/themes/nova-light/theme.css"
          )
        ],
        use: [
          // Creates `style` nodes from JS strings
          "style-loader",
          // Translates CSS into CommonJS
          "css-loader",
          // Compiles Sass to CSS
          "sass-loader"
        ]
      },
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader"
        }
      }
    ]
  },
  externals: {
    Config: JSON.stringify(
      process.env.NODE_ENV === "production"
        ? require("./config.prod.json")
        : require("./config.dev.json")
    )
  }
};

其他类似问题的答案似乎过时了，因为这样做会抛出其他错误或同样的错误。

• https://forum.primefaces.org/viewtopic.php?t=52134

Answer 1

这篇文章有解决方案：https://github.com/webpack-contrib/sass-loader/issues/344

我错过了这些装载机：

      {
    test: /\.css$/,
    use: [
      {
        loader: "css-loader"
      }
    ]
  },
  {
    test: /\.(png|gif|woff|woff2|eot|ttf|svg)$/,
    loader: "url-loader?limit=100000"
  },

Answer 2

也许this帖子可能会回答你的问题。这是太多的复制整个答案，我相信，如果你能够访问这个网页，你将可以访问该答案。

最小可重现性答案

您需要安装es2015预置：

npm install babel-preset-es2015
and then configure babel-loader:

{
    test: /\.jsx?$/,
    loader: 'babel-loader',
    exclude: /node_modules/,
    query: {
        presets: ['es2015']
    }
}