转载自：
Maple13 的 blog 的文章ERESOLVE unable to resolve dependency tree
报错现象
-
npm ERR! code ERESOLVE -
npm ERR! ERESOLVE unable to resolve dependency tree -
npm ERR! -
npm ERR! While resolving: ant-design-pro@4.1.0 -
npm ERR! Found: react@16.14.0 -
npm ERR! node_modules/react -
npm ERR! react@"^16.8.6" from the root project -
npm ERR! -
npm ERR! Could not resolve dependency: -
npm ERR! peer react@"^15.0.0" from react-fittext@1.0.0 -
npm ERR! node_modules/react-fittext -
npm ERR! react-fittext@"^1.0.0" 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\issuser\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\issuser\AppData\Local\npm-cache\_logs\2021-06-10T07_34_08_028Z-debug.log
出现原因
升级 npm 至 v7.6.2 后, 运行 npm i 安装依赖，报错 ERESOLVE unable to resolve dependency tree
环境
- node: 16.3.0
- npm: 7.6.2
- React项目
错误原因
等依赖项中存在无法解决的冲突，npm@7 现在尝试安装它们，而npm@6没有。
解决方案
使用 npm i --legacy-peer-deps
参考
[BUG] ERESOLVE无法解析依赖关系树（postcss-load-config，svelte-preprocess）
npm 7 is now generally available!
