extract-text-webpack-plugin不兼容webpackage4.0

Module build failed (from ./node_modules/_extract-text-webpack-plugin@4.0.0-beta.0@extract-text-webpack-plugin/dist/loader.js):
TypeError: text.forEach is not a function

出现以上报错，是由于在 webpackage4.0中使用了extract-text-webpack-plugin插件，该插件在webpackage3.0中使用正常。这是要得用mini-css-extract-plugin，附带github地址：github.com/webpack-con…