Js |webpack 使用loader时候 module里面存在loaders的版本问题！！

webpack.config.js

module.exports = {
    entry: "./index.js",
    output: {
        path: __dirname,
        filename: "bundle.js"
    },
    module: {
        loaders: [
            { test: /\.css$/, loader: "style-loader!css-loader" }
        ]
    }
};

运行报错！

Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.
 - configuration.module has an unknown property 'loaders'. These properties are valid:
   object { defaultRules?, exprContextCritical?, exprContextRecursive?, exprContextRegExp?, exprContextRequest?, noParse?, rules?, strictExportPresence?, strictThisContextOnImports?, unknownContextCritical?, unknownContextRecursive?, unknownContextRegExp?, unknownContextRequest?, unsafeCache?, wrappedContextCritical?, wrappedContextRecursive?, wrappedContextRegExp? }
   -> Options affecting the normal modules (`NormalModuleFactory`).

从报错的信息里面可以得知：
Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.

这个配置文件的版本和我们当前安装的webpack的版本不匹配

configuration.module has an unknown property ‘loaders’.

接下来这段我们只需要看前面一句，意思是webpack.config.js这个配置文件里的module属性有一个未知的配置项loaders，原因嘛，就是我们当前安装的webpack版本已经去掉了这个配置。

再看一下菜鸟教程里面：

测试的版本是：3.0

所以解决办法有两个:

• 通过看官网去获取最新的配置
• 修改webpack的版本

现在以第一个解决办法为例子：

修改webpack.config.js

module.exports = {
    entry: './index.js',
    output: {
        path: __dirname,
        filename: "bundle.js"
    },
    module: {
        rules: [
            {test: /\.css$/,use: 'css-loader'}
        ]
    }
};

成功解决！