【菜鸟搭建react项目之路4】【webpack】options has an unknown property 'contentBase'.

报错信息：

[webpack-cli] Invalid options object. Dev Server has been initialized using an options object that does not match the API schema.
- options has an unknown property 'contentBase'. These properties are valid:

 

原因：

webpack配置代码：

devServer: {
    contentBase: __dirname,
  },

其实信息提示得挺明白了，就是contentBase这个属性不能用了。

 

解决方案：

因为contentBase已经弃用了，所以正确应该改为：

devServer: {
    // contentBase: __dirname,
    static: {
      directory: path.join(__dirname, "dist"),
    },
  },