一、首先要正确卸载webpack
-
卸载局部webpack-cli
npm uninstall webpack-cli
-
卸载全局webpack
npm uninstall -g webpack
-
卸载局部webpack
npm uninstall webpack
二、安装(这些版本不冲突) -
npm install --save-dev webpack@4.35.3
-
npm install --save-dev webpack-cli@3.3.6
-
npm install --save-dev webpack-dev-server@3.11.0
结果:
package.json中
npm run start
ok