具体问题如下：

npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: XXX@3.4.0
npm ERR! Found: webpack@5.31.2
npm ERR! node_modules/webpack
npm ERR! peer webpack@”^4.0.0 || ^5.0.0″ from html-webpack-plugin@4.5.2
npm ERR! node_modules/html-webpack-plugin
npm ERR! peer html-webpack-plugin@”^3.0.0 || ^4.0.0″ from script-ext-html-webpack-plugin@2.1.5
npm ERR! node_modules/script-ext-html-webpack-plugin
npm ERR! dev script-ext-html-webpack-plugin@”2.1.5″ from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer webpack@”^1.0.0 || ^2.0.0 || ^3.0.0 || ^4.0.0″ from script-ext-html-webpack-plugin@2.1.5
npm ERR! node_modules/script-ext-html-webpack-plugin
npm ERR! dev script-ext-html-webpack-plugin@”2.1.5″ from the root project
npm ERR!
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with –force, or –legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR!

2、问题分析

npm版本过高

3、问题解决

npm install npm@6.14.10 -g

如果还提示出现 python 的信息，说明还需要安装python，去python官网下载对应版本的安装包安装即可，一般是2.7版本。python官网下载

如果提示 这些等乱七八糟的基本上就是node-sass 版本冲突问题

gyp ERR! node -v v14.19.1 gyp ERR! node-gyp -v v8.4.1 gyp ERR! not ok

直接去npm官网查看 使用nvm控制node版本或者 npm install node-sass@4.14（示例4.14）安装指定版本node-sass!!!

链接    node-sass - npm