vue cli创建vue2项目报错：ERESOLVE unable to resolve dependency tree；但创建vue3项目正常

Bertha 。 2022-10-09 02:50 11阅读 0赞

## 本地环境 ##

@vue/cli: 4.5.7  
node: 16.3.0  
npm: 7.15.1

## 报错信息 ##

npm ERR! code ERESOLVE
    npm ERR! ERESOLVE unable to resolve dependency tree
    npm ERR!
    npm ERR! Found: vue@2.6.14
    npm ERR! node_modules/vue
    npm ERR!   vue@"^2.6.11" from the root project
    npm ERR!   peer vue@"^2 || ^3.0.0-0" from @vue/babel-preset-app@4.5.13
    npm ERR!   node_modules/@vue/babel-preset-app
    npm ERR!     @vue/babel-preset-app@"^4.5.13" from @vue/cli-plugin-babel@4.5.13
    npm ERR!     node_modules/@vue/cli-plugin-babel
    npm ERR!       dev @vue/cli-plugin-babel@"~4.5.0" from the root project
    npm ERR!
    npm ERR! Could not resolve dependency:
    npm ERR! peer vue@"3.1.2" from @vue/compiler-sfc@3.1.2
    npm ERR! node_modules/@vue/compiler-sfc
    npm ERR!   peer @vue/compiler-sfc@"^3.0.0-beta.14" from @vue/cli-service@4.5.13
    npm ERR!   node_modules/@vue/cli-service
    npm ERR!     dev @vue/cli-service@"~4.5.0" from the root project
    npm ERR!     4 more (@vue/cli-plugin-babel, @vue/cli-plugin-eslint, ...)
    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.

## 原因 ##

node版本过高，导致创建vue2项目的时候，依赖存在问题

## 解决方案 ##

将node降级

*  卸载本地的node

brew uninstall node

> 还需要删除npm

rm -rf /usr/local/lib/node_modules/npm

*  安装低版本的node

brew install node@12

*  安装后版本  
    node: 12.22.1  
    npm: 6.14.12