我试图ng build在我的项目文件夹中运行，但得到以下响应：
bash：ng：找不到命令
我想念什么？它与管理员特权，我的路径/配置文件或我需要在全局安装的东西有关吗？
这是我的package.json：
{
"name": "meanauthapp",
"version": "1.0.0",
"description": "MEAN stack authentication app",
"main": "app.js",
"scripts": {
"start": "node app"
},
"dependencies": {
"express": "4.16.2",
"mongoose": "4.13.6",
"bcryptjs": "2.4.3",
"cors": "2.8.4",
"jsonwebtoken": "8.1.0",
"body-parser": "1.18.2",
"passport": "0.4.0",
"passport-jwt": "3.0.1"
},
"author": "",
"license": "MIT",
"devDependencies": {
"@angular/cli": "^1.6.0"
}
}