1.  webpack的配置文件中有个配置项：

new HtmlWebpackPlugin({

favicon: 'favicon.ico',

filename: config.build.index,

template: 'index.html',

inject: true,

minify: {

removeComments: true,

collapseWhitespace: true,

removeAttributeQuotes: true

// more options:

// https://github.com/kangax/html-minifier#options-quick-reference

},

// necessary to consistently work with multiple chunks via CommonsChunkPlugin

chunksSortMode: 'dependency'

}),

看看你是不是配置不太对？

2. 看看你自己有没有index.html