node.js - Heroku 不会运行 Node 。

Question

我有一个 sails js 应用程序，我正在尝试在 heroku 服务器上启动。据我所知，heroku 应用程序默认安装 ruby​​ 而不是 node。

我有一个 bower.json 文件、一个 package.json 文件和一个 Procfile。

错误:

Starting process with command `node app.js`
bash: node: command not found

简介:

web: node app.js

Package.json:

{
  "name": "app",
  "private": true,
  "version": "0.0.1",
  "dependencies": {
    "node": "*",
    "sails": "~0.10.5",
    "sails-disk": "~0.10.0",
    "request": "^2.51.0",
    "node-fullbox-api": "*",
    "stripe": "*",
    "rc": "~0.5.0",
    "bower": "^1.3.9",
    "grunt": "^0.4.5",
    "grunt-banner": "^0.2.3",
    "grunt-bower": "^0.14.0",
    "grunt-bowercopy": "^1.1.0",
    "grunt-concurrent": "^0.5.0",
    "grunt-config-dir": "^0.3.2",
    "grunt-contrib-clean": "^0.5.0",
    "grunt-contrib-compass": "^0.8.0",
    "grunt-contrib-concat": "^0.4.0",
    "grunt-contrib-connect": "^0.8.0",
    "grunt-contrib-copy": "^0.5.0",
    "grunt-contrib-cssmin": "^0.10.0",
    "grunt-contrib-htmlmin": "^0.3.0",
    "grunt-contrib-imagemin": "^0.7.2",
    "grunt-contrib-jshint": "^0.10.0",
    "grunt-contrib-requirejs": "^0.4.4",
    "grunt-contrib-watch": "^0.6.1",
    "grunt-githooks": "^0.3.1",
    "grunt-jscs": "^0.6.2",
    "grunt-lodash": "^0.4.0",
    "grunt-modernizr": "^0.5.2",
    "grunt-newer": "^0.7.0",
    "grunt-scss-lint": "^0.3.3",
    "grunt-string-replace": "^1.0.0",
    "grunt-stripmq": "0.0.6",
    "grunt-svgmin": "^0.4.0",
    "jquery-builder": "^0.7.0",
    "jshint-stylish": "^0.4.0",
    "lodash": "^1.3.1",
    "lodash-cli": "^3.1.0",
    "rjs-build-analysis": "0.0.3",
    "time-grunt": "^0.3.2",
    "grunt-contrib-coffee": "~0.10.1",
    "grunt-contrib-jst": "~0.6.0",
    "grunt-contrib-less": "0.11.1",
    "grunt-contrib-uglify": "~0.4.0",
    "grunt-sails-linker": "~0.9.5",
    "grunt-sync": "~0.0.4",
    "include-all": "~0.1.3",
    "underscore": "^1.7.0"
  },
  "scripts": {
    "postinstall": "node npm-postinstall.js"
  },
  "main": "app.js",
  "scripts": {
      "start": "node app.js",
      "debug": "node debug app.js"
  },
  "devDependencies": {
    "mkdirp": "^0.5.0",
    "shortid": "^2.1.3",
    "node": "*"
  },
  "engines": {
      "node": "*",
      "npm":  "*",
      "ruby": "*"
  }
}

至于测试:我可以在本地运行 heroku，如果启动服务器就好了。 npm start 和 npm install 工作得很好。 node app.js 启动应用程序就好了。

我发现，当我通过以下方式连接到 heroku 时:heroku run bash

我得到一个可以运行这些的命令行:

~ $ which ruby
/app/bin/ruby
~ $ npm install
bash: npm: command not found
~ $ bower install
bash: bower: command not found
~ $ which git
/usr/bin/git

我做错了什么？!谢谢!

Answer 1

好的，我找到了答案。每次我推送新代码时，它都会说:

remote: -----> Warning: Multiple default buildpacks reported the ability to handle this app. The first buildpack in the list below will be used.
remote:        Detected buildpacks: Ruby, Node.js
remote:        See https://devcenter.heroku.com/articles/buildpacks#buildpack-detect-order

配合它说 node command not found，我能够追踪到 heroku 有一个默认顺序，它检测安装的服务器类型。在这种情况下，它是 ruby 。

我在这里找到了答案: Heroku wrongly detecting my Node app as a Ruby app

这是为了做到这一点:

$ heroku config:add BUILDPACK_URL=https://github.com/heroku/heroku-buildpack-nodejs
$ git commit -am "empty" --allow-empty
$ git push heroku master