title: Primeng don't import card component
body: <p>I would use Primeng Card component </p>
  
  <p>In <strong>module.ts</strong> I call the module.</p>
  
  <pre><code> import { CardModule } from 'primeng/card';
  </code></pre>
  
  <p>when compiling, angular don't find the module </p>
  
  <pre><code> ERROR in /home/haddad/projects/arrr/arrrt/src/app/app.module.ts (9,28): Cannot find module 'primeng/card'.
  </code></pre>
  
  <p>I'm using the version <strong>4.2.4</strong></p>
  
  <p>when I update to version 5  of primeng I get this error</p>
  
  <pre><code>ERROR in Error: Metadata version mismatch for module /home/haddad/projects/node_modules/primeng/components/sidebar/card.d.ts, found version 4, expected 3, resolving symbol AppModule in /home/haddad/projects/ar/arrt/src/app/app.module.ts, resolving symbol AppModule in /home/haddad/projects/ar/arrt/src/app/app.module.ts
  </code></pre>
  
  <p>And I'm obliged to use angular 4.</p>
  
  <p>Here's my <strong>package.json</strong> for more informations :</p>
  
  <pre><code>"dependencies": {
    "@angular/animations": "^4.3.6",
    "@angular/common": "^4.4.4",
    "@angular/compiler": "^4.4.4",
    "@angular/core": "^4.4.4",
    "@angular/forms": "^4.4.4",
    "@angular/http": "^4.4.4",
    "@angular/platform-browser": "^4.4.4",
    "@angular/platform-browser-dynamic": "^4.4.4",
    "@angular/router": "^4.4.4",
    "core-js": "^2.4.2",
    "font-awesome": "^4.7.0",
    "primeng": "^4.2.4",
    "rxjs": "^5.5.6",
    "zone.js": "^0.8.19"
  },
  "devDependencies": {
    "@angular/cli": "1.6.6",
    "@angular/compiler-cli": "~4.3.4",
    "@angular/language-service": "^4.3.4",
    "@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": "~2.3.4"
  }
  </code></pre>