用 cli 生成的 vue3 项目，如果自己安装 pinia 的话会安装最新版本，即 2.1.x，pinia默认安装的是vue 2.6版本，已经不支持 vue3.3 以下使用，在进行安装时报错如下：

npm ERR! code ERESOLVE
npm ERR! ERESOLVE could not resolve
npm ERR!
npm ERR! While resolving: uni-preset-vue@0.0.0
npm ERR! Found: vue@3.2.47
npm ERR! node_modules/vue
npm ERR! peer vue@"^3.2.25" from @vitejs/plugin-vue@4.2.3
npm ERR! node_modules/@vitejs/plugin-vue
npm ERR! @vitejs/plugin-vue@"^4.1.0" from @dcloudio/uni-app-vite@3.0.0-3080420230531001
npm ERR! node_modules/@dcloudio/uni-app-vite
npm ERR! @dcloudio/uni-app-vite@"3.0.0-3080420230531001" from @dcloudio/uni-app-plus@3.0.0-3080420230531001
npm ERR! node_modules/@dcloudio/uni-app-plus
npm ERR! @dcloudio/uni-app-plus@"3.0.0-3080420230531001" from the root project
npm ERR! @vitejs/plugin-vue@"^4.1.0" from @dcloudio/vite-plugin-uni@3.0.0-3080420230531001
npm ERR! node_modules/@dcloudio/vite-plugin-uni
npm ERR! dev @dcloudio/vite-plugin-uni@"^3.0.0-3080420230531001" from the root project
npm ERR! peer vue@"^3.0.0" from @vitejs/plugin-vue-jsx@3.0.1
npm ERR! node_modules/@vitejs/plugin-vue-jsx
npm ERR! @vitejs/plugin-vue-jsx@"^3.0.1" from @dcloudio/vite-plugin-uni@3.0.0-3080420230531001
npm ERR! node_modules/@dcloudio/vite-plugin-uni
npm ERR! dev @dcloudio/vite-plugin-uni@"^3.0.0-3080420230531001" from the root project
npm ERR! 4 more (@vue/server-renderer, vue-i18n, vue-router, the root project)
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! pinia@"" from the root project
npm ERR!
npm ERR! Conflicting peer dependency: vue@3.3.4
npm ERR! node_modules/vue
npm ERR! peer vue@"^2.6.14 || ^3.3.0" from pinia@2.1.4
npm ERR! node_modules/pinia
npm ERR! pinia@"" 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. 

解决办法：

1、先降低一下vue的版本，npm install vue@3.2.31 --force 

npm install vue@3.2.31 --force

2、重新执行安装命令

npm install pinia-plugin-persistedstate

经测试，此方法可行

安装成功后查看项目中，pinia确实安装成功

本文方法仅供参考

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