webpack 无法打包：No configuration file found and no output filename configured via CLI option

报错内容

No configuration file found and no output filename configured via CLI option.
A configuration file could be named 'webpack.config.js' in the current directory.
Use --help to display the CLI options.

问题：无法识别webpack.config.js文件，

解决：1.看单词有没有写错；

　　　2.将webpack.config.js  移动到项目根目录下， 而不是放在src中