在安装NodeBB的时候，接触到一个命令，

npm install --production

上面的命令是用来一键安装NodeBB里面的package.json里的配置的包的。

添加了production  参数后将仅仅  安装  package.json 中dependencies 里面的包，不会安装

devDependencies 里面的。

package.json里面的文件内容如下所示：

{  "name": "nodebb",  "license": "GPL-3.0",  "description": "NodeBB Forum",  "version": "1.0.3",  "homepage": "http://www.nodebb.org",  "repository": {    "type": "git",    "url": "https://github.com/NodeBB/NodeBB/"  },  "main": "app.js",  "scripts": {    "start": "node loader.js",    "test": "mocha ./tests -t 10000"  },  "dependencies": {    "async": "~1.5.0",    "autoprefixer": "^6.2.3",    "bcryptjs": "~2.3.0",    "body-parser": "^1.9.0",    "chart.js": "^1.0.2",    "colors": "^1.1.0",    "compression": "^1.1.0",    "connect-ensure-login": "^0.1.1",    "connect-flash": "^0.1.1",    "connect-mongo": "~1.1.0",    "connect-multiparty": "^2.0.0",    "connect-redis": "~3.0.2",    "cookie-parser": "^1.3.3",    "cron": "^1.0.5",    "csurf": "^1.6.1",    "daemon": "~1.1.0",    "express": "^4.9.5",    "express-session": "^1.8.2",    "express-useragent": "0.2.4",    "html-to-text": "2.0.0",    "ip": "1.1.2",    "jimp": "0.2.21",    "less": "^2.0.0",    "logrotate-stream": "^0.2.3",    "lru-cache": "4.0.0",    "mime": "^1.3.4",    "minimist": "^1.1.1",    "mkdirp": "~0.5.0",    "mongodb": "~2.1.3",    "morgan": "^1.3.2",    "mousetrap": "^1.5.3",    "nconf": "~0.8.2",    "nodebb-plugin-composer-default": "3.0.22",    "nodebb-plugin-dbsearch": "1.0.1",    "nodebb-plugin-emoji-one": "1.1.0",    "nodebb-plugin-emoji-extended": "1.1.0",    "nodebb-plugin-markdown": "5.0.1",    "nodebb-plugin-mentions": "1.0.21",    "nodebb-plugin-soundpack-default": "0.1.6",    "nodebb-plugin-spam-be-gone": "0.4.6",    "nodebb-rewards-essentials": "0.0.8",    "nodebb-theme-lavender": "3.0.9",    "nodebb-theme-persona": "4.0.118",    "nodebb-theme-vanilla": "5.0.63",    "nodebb-widget-essentials": "2.0.9",    "nodemailer": "2.0.0",    "nodemailer-sendmail-transport": "1.0.0",    "nodemailer-smtp-transport": "^2.4.1",    "passport": "^0.3.0",    "passport-local": "1.0.0",    "postcss": "^5.0.13",    "prompt": "^1.0.0",    "redis": "~2.4.2",    "request": "^2.44.0",    "rimraf": "~2.5.0",    "rss": "^1.0.0",    "semver": "^5.1.0",    "serve-favicon": "^2.1.5",    "sitemap": "^1.4.0",    "socket.io": "^1.4.0",    "socket.io-client": "^1.4.0",    "socket.io-redis": "^1.0.0",    "socketio-wildcard": "~0.3.0",    "string": "^3.0.0",    "templates.js": "0.3.4",    "toobusy-js": "^0.4.2",    "uglify-js": "^2.6.0",    "underscore": "^1.8.3",    "underscore.deep": "^0.5.1",    "validator": "^5.0.0",    "winston": "^2.1.0",    "xregexp": "~3.1.0"  },  "devDependencies": {    "mocha": "~1.13.0",    "grunt": "~0.4.5",    "grunt-contrib-watch": "^1.0.0"  },  "bugs": {    "url": "https://github.com/NodeBB/NodeBB/issues"  },  "engines": {    "node": ">=0.10"  },  "maintainers": [    {      "name": "Andrew Rodrigues",      "email": "andrew@nodebb.org",      "url": "https://github.com/psychobunny"    },    {      "name": "Julian Lam",      "email": "julian@nodebb.org",      "url": "https://github.com/julianlam"    },    {      "name": "Barış Soner Uşaklı",      "email": "baris@nodebb.org",      "url": "https://github.com/barisusakli"    }  ]}

但是我在安装NodeBB里面的包的时候遇到了卡住不动的问题，是版本的问题吗？