node.js - 将 angular 2 App(angular cli)部署到 heroku

Question

我用 angular cli 构建了 angular 2 应用程序 ng build 命令工作得很好，它创建了 dist 文件夹。

为了部署它，我遵循了本教程 Deploy angular 2 app to heroku

当我按照所有步骤操作时，我输入 heroku open 但我收到应用程序错误

ng:未找到

日志

如果你想看，这是我的 package.json 文件

看来是angular-cli和他的命令ng的问题 但是在我的 package.json 中有它

`{
  "name": "rusticstock",
  "version": "0.0.0",
  "license": "MIT",
  "angular-cli": {},
  "scripts": {
    "start": "http-server",
    "lint": "tslint \"src/**/*.ts\"",
    "test": "ng test",
    "pree2e": "webdriver-manager update",
    "e2e": "protractor",
    "preinstall": "npm install -g http-server",
    "postinstall": "ng build && mv dist/* ."
  },
  "private": true,
  "dependencies": {
    "angular-cli": "1.0.0-beta.16",
    "@angular/common": "2.0.2",
    "@angular/compiler": "2.0.2",
    "@angular/core": "2.0.2",
    "@angular/forms": "2.0.0",
    "@angular/http": "2.0.0",
    "@angular/platform-browser": "2.0.2",
    "@angular/platform-browser-dynamic": "2.0.2",
    "@angular/router": "3.0.0",
    "core-js": "^2.4.1",
    "bootstrap": "^3.3.6",
    "ng2-bs3-modal": "^0.10.4",
    "rxjs": "5.0.0-beta.12",
    "ts-helpers": "^1.1.1",
    "zone.js": "^0.6.23",
    "@types/jasmine": "^2.2.30",`enter code here`
    "codelyzer": "~0.0.26",
    "jasmine-core": "2.4.1",
    "jasmine-spec-reporter": "2.5.0",
    "karma": "1.2.0",
    "karma-chrome-launcher": "^2.0.0",
    "karma-cli": "^1.0.1",
    "karma-jasmine": "^1.0.2",
    "karma-remap-istanbul": "^0.2.1",
    "protractor": "4.0.9",
    "ts-node": "1.2.1",
    "tslint": "3.13.0",
    "typescript": "2.0.2"
  },
  "devDependencies": {
  },
  "engines": {
    "node": "6.6.0",
    "npm": "3.10.3"
  }
}
`

还有一件事，当我部署时，我看到安装了像@angular/common 这样的组件......但没有安装所有组件。

如有任何建议，我们将不胜感激。

Answer 1

看起来您的 heroku 应用程序实例没有安装 angular-cli。 我找到了安装它的方法。

在您的 JSON 包中，添加这样的预安装命令

"scripts": {
    "start": "http-server",
    "lint": "tslint \"src/**/*.ts\"",
    "test": "ng test",
    "pree2e": "webdriver-manager update",
    "e2e": "protractor",
    "preinstall": "npm install -g angular-cli",
    "postinstall": "ng build && mv dist/* ."
  },

这会在 heroku 服务器上安装 angular-cli，你不会得到 ng command not found 相关的错误。