将MEAN部署到heroku时出现应用程序错误

Question

{
  "name": "ng-app",
  "version": "0.0.0",
  "engines": {
"node": "8.11.3",
    "npm": "^5.6.0",
},
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "node server.js",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e",
    "postinstall": "ng build --output-path dist"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^5.2.0",
   "@angular/cli": "^6.0.8",
    "@angular/common": "^5.2.0",
     "@angular/compiler": "^6.0.3",
    "@angular/compiler-cli": "^6.0.7",
    "@angular/core": "^5.2.0",
    "@angular/forms": "^5.2.0",
    "@angular/http": "^5.2.0",
    "@angular/platform-browser": "^5.2.0",
    "@angular/platform-browser-dynamic": "^5.2.0",
    "@angular/router": "^5.2.0",
    "animate.css": "^3.6.1",
    "bcryptjs": "^2.4.3",
    "body-parser": "^1.18.2",
    "bootstrap": "^4.1.1",
    "core-js": "^2.4.1",
    "ember-cli-cors": "0.0.2",
    "express": "^4.16.3",
    "jsonwebtoken": "^8.3.0",
    "mongoose": "^5.1.0",
    "ngx-toastr": "^8.5.1",
    "rxjs": "^5.5.6",
    "zone.js": "^0.8.19"
  },
  "devDependencies": {
    "@angular/language-service": "^5.2.0",
    "@types/jasmine": "~2.8.3",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "^4.0.1",
    "jasmine-core": "~2.8.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~2.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~4.1.0",
    "tslint": "~5.9.1",
    "typescript": "~2.5.3"
  }
}

不了解我要去哪里。救救我。