似乎vuex安装不了

老师从昨晚到现在弄了好几小时没下文，刚才重启电脑，我先npm安装vuex，然后才进入项目安装依赖运行项目，现在倒没报错，估计安装好了。看视频里说是进入项目里安装，我这不能在终端运行出现8080后安装。 Last login: Sat Apr 13 10:20:12 on console agandeMacBook-Pro:~ agan$ npm install vuex --save npm WARN saveError ENOENT: no such file or directory, open '/Users/agan/package.json' npm notice created a lockfile as package-lock.json. You should commit this file. npm WARN enoent ENOENT: no such file or directory, open '/Users/agan/package.json' npm WARN agan No description npm WARN agan No repository field. npm WARN agan No README data npm WARN agan No license field. + vuex@3.1.0 added 1 package from 1 contributor in 4.886s