在vue2环境下，默认安装 npm install vue-i18n 的版本是 [email protected]，所以报错信息如下：
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: [email protected]
npm ERR! Found: [email protected]
npm ERR! node_modules/vue
npm ERR! vue@"^2.6.11" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer vue@"^3.0.0" from [email protected]
npm ERR! node_modules/vue-i18n
npm ERR! vue-i18n@"*" 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!
**peer vue@“^3.0.0” from [email protected] ** 这段意思是 版本不匹配
我们可以使用下面命令查看 vue-i18n 所有版本：
npm view vue-i18n versions --json
然后找到合适的版本即可，这里使用的是 5.0.0
npm install vue-i18n@5