title: Dependency problem when migrating to angular 8
body: <p>I tried to migrate an application to angular 8, but now when I run my application, I have a dependency problem in my package.json.</p>
  
  <p>After updating angular / cli, when launching the application, I have the following message:</p>
  
  <blockquote>
    <p>An unhandled exception occurred while processing the request.
    AggregateException: One or more errors occurred. (One or more errors >occurred. (The NPM script 'start' exited without indicating that the Angular >CLI was listening for requests. The error output was: An unhandled exception >occurred: Cannot find module '@angular/compiler-cli/ngcc'</p>
  </blockquote>
  
  <p>Here is my package.json file</p>
  
  <pre><code>{
    "name": "ProjetPlanning",
    "version": "0.0.0",
    "license": "MIT",
    "scripts": {
      "ng": "ng",
      "start": "ng serve",
      "build": "ng build --extract-css",
      "build:ssr": "npm run build -- --app=ssr --output-hashing=media",
      "test": "ng test",
      "lint": "ng lint",
      "e2e": "ng e2e"
    },
    "private": true,
    "dependencies": {
      "@angular/animations": "^5.2.0",
      "@angular/common": "^5.2.0",
      "@angular/compiler": "^5.2.0",
      "@angular/core": "^5.2.0",
      "@angular/forms": "^5.2.0",
      "@angular/platform-browser": "^5.2.0",
      "@angular/platform-browser-dynamic": "^5.2.0",
      "@angular/platform-server": "^5.2.0",
      "@angular/router": "^5.2.0",
      "@nguniversal/module-map-ngfactory-loader": "^5.0.0-beta.5",
      "aspnet-prerendering": "^3.0.1",
      "bootstrap": "^3.4.1",
      "core-js": "^2.4.1",
      "rxjs": "^5.5.6",
      "tslib": "^1.10.0",
      "zone.js": "~0.9.1"
    },
    "devDependencies": {
  "@angular-devkit/build-angular": "~0.803.3",
  "@angular/cli": "^8.3.3",
  "@angular/compiler-cli": "^5.2.0",
  "@angular/language-service": "^5.2.0",
  "@types/jasmine": "~2.8.3",
  "@types/jasminewd2": "~2.0.2",
  "@types/node": "~6.0.60",
  "codelyzer": "^5.0.1",
  "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"
    },
    "optionalDependencies": {
  "node-sass": "^4.9.0"
  </code></pre>
  
  <p>}
  }</p>
  
  <p>I can not solve this problem and I do not know which dependencies are problematic and why</p>