title: This version of CLI is only compatible with Angular version 5.0.0 or higher error
body: <p>I already had angular project that ran in 4 version. While installing new project, unfortunately i have installed 6 version of angular cli. This throw me an error 'Your global Angular CLI version is greater than your local version' while running ng serve command in old project that ran in 4 version. Again i tried to update my anglar local version. But now i have got an error This version of CLI is only compatible with Angular version 5.0.0 or higher.  My package.json is following:</p>
  
  <pre><code> {
    "name": "authority-client",
    "version": "0.0.0",
    "license": "MIT",
    "scripts": {
      "ng": "ng",
      "start": "ng serve",
      "build": "ng build",
      "test": "ng test",
      "lint": "ng lint",
      "e2e": "ng e2e"
    },
    "private": true,
    "dependencies": {
      "@angular-devkit/core": "^0.7.2",
      "@angular/animations": "^4.2.4",
      "@angular/common": "^4.2.4",
      "@angular/compiler": "^4.2.4",
      "@angular/core": "^4.2.4",
      "@angular/forms": "^4.2.4",
      "@angular/http": "^4.2.4",
      "@angular/platform-browser": "^4.2.4",
      "@angular/platform-browser-dynamic": "^4.2.4",
      "@angular/router": "^4.2.4",
      "@types/file-saver": "^1.3.0",
      "angular2-cookie": "^1.2.6",
      "core-js": "^2.4.1",
      "file-saver": "^1.3.8",
      "ng2-toastr": "^4.1.2",
      "ngx-bootstrap": "^2.0.1",
      "ngx-loading": "^1.0.14",
      "npm": "^5.5.1",
      "postcss-loader": "^2.0.9",
      "rxjs": "^5.4.2",
      "sweetalert2": "^7.22.0",
      "zone.js": "^0.8.14"
    },
    "devDependencies": {
      "@angular-devkit/build-angular": "~0.7.0",
      "@angular/cli": "^6.1.5",
      "@angular/compiler-cli": "^4.2.4",
      "@angular/language-service": "^4.2.4",
      "@ngtools/webpack": "^6.1.5",
      "@types/jasmine": "~2.5.53",
      "@types/jasminewd2": "~2.0.2",
      "@types/node": "~6.0.60",
      "angular-ide": "^0.9.44",
      "codelyzer": "~3.1.1",
      "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",
      "protractor": "^5.4.0",
      "ts-node": "~3.2.0",
      "tslint": "~5.3.2",
      "typescript": "~2.3.3"
    }
  }
  </code></pre>
  
  <p>Can someone fix this error. I have been tried from last 2 days, but i cant find any appropriate solution.</p>