title: You seem to not be depending on "@angular/core". Typescript
body: <p>I'm trying to run a command at npm start, but I get the message: "You seem to be not dependent on" @angular/core ". This is an error.
  What could be the reason?
  As it writes in the console: npm @angular/core -v it gets 5.4.2</p>
  
  <p>My package.json</p>
  
  <pre><code>"dependencies": {
  "@angular/animations": "^4.4.3",
  "@angular/common": "^4.4.3",
  "@angular/compiler": "^4.4.3",
  "@angular/core": "^4.4.3",
  "@angular/forms": "^4.4.3",
  "@angular/http": "^4.4.3",
  "@angular/platform-browser": "^4.4.3",
  "@angular/platform-browser-dynamic": "^4.4.3",
  "@angular/router": "^4.4.3",
  "applicationinsights-js": "^1.0.12",
  "core-js": "^2.4.1",
  "date-fns": "^1.28.5",
  "deepmerge": "^1.5.1",
  "fingerprintjs2": "^1.5.1",
  "ng2-page-scroll": "^4.0.0-beta.9",
  "ngx-mydatepicker": "2.1.2",
  "rxjs": "^5.1.0",
  "zone.js": "^0.8.12"
  },
  "devDependencies": {
  "@angular/cli": "^1.4.2",
  "@angular/compiler-cli": "^4.4.3",
  "@angular/language-service": "^4.4.3",
  "@types/applicationinsights-js": "^1.0.4",
  "@types/deepmerge": "^1.3.2",
  "@types/jasmine": "~2.5.53",
  "@types/jasminewd2": "~2.0.2",
  "@types/node": "~6.0.60",
  "codelyzer": "~3.0.1",
  "gulp": "^3.9.1",
  "gulp-deploy-git": "^0.5.3",
  "gulp-replace": "^0.6.1",
  "husky": "^0.14.3",
  "jasmine-core": "~2.6.2",
  "jasmine-spec-reporter": "~4.1.0",
  "karma": "~1.7.0",
  "karma-chrome-launcher": "~2.1.1",
  "karma-cli": "~1.0.1",
  "karma-coverage-istanbul-reporter": "^1.2.1",
  "karma-jasmine": "~1.1.0",
  "karma-jasmine-html-reporter": "^0.2.2",
  "lint-staged": "^4.0.3",
  "prettier": "^1.5.3",
  "protractor": "^5.1.2",
  "run-sequence": "^2.1.0",
  "ts-node": "~3.2.0",
  "tslint": "~5.7.0",
  "typescript": "^2.5.2"
  }
  </code></pre>