安装npm包时出现依赖树错误的解决办法
报错提示:无法解决该依赖(Could not resolve dependency),与该less版本冲突(Conflicting peer dependency: less@3.13.1).并告知:Fix the upstream dependency conflict, or retry this command with --force, or --legacy-peer-deps to a
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示例
npm install webpack-bundle-analyzer --save-dev
npm WARN config global `--global`, `--local` are deprecated. Use `--location=global` instead.
npm ERR! code ERESOLVE
npm ERR! ERESOLVE could not resolve
npm ERR!
npm ERR! While resolving: less-loader@5.0.0
npm ERR! Found: less@4.1.3
npm ERR! node_modules/less
npm ERR! dev less@"^4.1.3" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer less@"^2.3.1 || ^3.0.0" from less-loader@5.0.0
npm ERR! node_modules/less-loader
npm ERR! dev less-loader@"5.0.0" from the root project
npm ERR!
npm ERR! Conflicting peer dependency: less@3.13.1
npm ERR! node_modules/less
npm ERR! peer less@"^2.3.1 || ^3.0.0" from less-loader@5.0.0
npm ERR! node_modules/less-loader
npm ERR! dev 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\jay\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\jay\AppData\Local\npm-cache\_logs\2022-08-27T14_31_12_311Z-debug-0.log
原因分析
可见,报错提示:无法解决该依赖(Could not resolve dependency),与该less版本冲突(Conflicting peer dependency: less@3.13.1).
并告知:Fix the upstream dependency conflict, or retry this command with --force, or --legacy-peer-deps to accept an incorrect (and potentially broken) dependency resolution.
使用npm7 及以上的版本,对等依赖问题视为错误,而版本npm6中通常只是的警告而已。
最直接的方式就是使用–legacy-peer-deps
方法一
npm install --legacy-peer-deps
npm install webpack-bundle-analyzer --save-dev --legacy-peer-deps
除此以外,还可以将其设置为更永久的配置选项:
npm config set legacy-peer-deps true
方法二
降级到npm6版本
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