在Heroku服务器上部署angular应用时出错

Question

我正在尝试通过以下方法在Heroku服务器上部署angular应用程序。 https://medium.com/@hellotunmbi/how-to-deploy-angular-application-to-heroku-1d56e09c5147

如果有人对此有任何想法，请在我试图找出此错误的根源时帮助我。在此先感谢

我将-prod更改为--prod，这帮助我成功地部署了该应用程序，但是，在打开该应用程序时，它给了我“” not found error“”，并且控制台错误是无法加载资源：服务器响应状态为404（未找到）。

这是应用程序的链接 https://recipebook-angularapp.herokuapp.com/

此应用程序可以在我的本地服务器上完美运行。

这是我的package.json

{
  "name": "recipe-book",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "node server.js",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e",
    "postinstall": "ng build --aot -prod"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "~7.2.0",
    "@angular/cli": "~7.2.2",
    "@angular/common": "~7.2.0",
    "@angular/compiler": "~7.2.0",
    "@angular/compiler-cli": "~7.2.0",
    "@angular/core": "~7.2.0",
    "@angular/forms": "~7.2.0",
    "@angular/platform-browser": "~7.2.0",
    "@angular/platform-browser-dynamic": "~7.2.0",
    "@angular/router": "~7.2.0",
    "bootstrap": "^3.4.0",
    "core-js": "^2.5.4",
    "express": "^4.16.4",
    "path": "^0.12.7",
    "rxjs": "~6.3.3",
    "tslib": "^1.9.0",
    "typescript": "~3.2.2",
    "zone.js": "~0.8.26"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.12.0",
    "@angular/cli": "~7.2.2",
    "@angular/compiler-cli": "~7.2.0",
    "@angular/language-service": "~7.2.0",
    "@types/jasmine": "~2.8.8",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "~8.9.4",
    "codelyzer": "~4.5.0",
    "enhanced-resolve": "^3.3.0",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~3.1.1",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~1.1.2",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.11.0",
    "typescript": "~3.2.2"
  },
  "engines": {
    "node": "11.6.0",
    "npm": "6.5.0"
  }
}

和server.js

//Install express server
const express = require('express');
const path = require('path');

const app = express();

// Serve only the static files form the dist directory
app.use(express.static('./dist/recipe-book'));

app.get('/*', function(req,res) {

res.sendFile(path.join(__dirname,'/dist/recipe-book/index.html'));
});

// Start the app by listening on the default Heroku port
app.listen(process.env.PORT || 8080);