执行 npm install –save react-router-dom
报错：
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: react-xxx@0.1.0
npm ERR! Found: less@4.1.2
npm ERR! node_modules/less
npm ERR! dev less@”^4.1.2″ from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! node_modules/less-loader
npm ERR! less-loader@”5.0.0″ 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!
npm ERR! See C:\Users\50638\AppData\Local\npm-cache\eresolve-report.txt for a full report.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\50638\AppData\Local\npm-cache\_logs\2022-03-16T01_18_11_204Z-debug-0.log
经检查发现，npm 版本过高导致。
使用 npm -v
现有版本 8.3.1
解决：
降低npm版本
npm install npm@6.14.10 -g然后再次安装router-dom 就成功了