Vue.config.devtools = true

這個(gè)解決了插件異常：Devtools inspection is not available because it's in production mode or explicitly disabled by the author. 

 

以上還是不行的話：

 

 

  configureWebpack: {

    devtool: 'true',

    // provide the app's title in webpack's name field, so that

    // it can be accessed in index.html to inject the correct title.

    // name: name,

    resolve: {

      alias: {

        '@': resolve('src')

      }

    }

  },