title: Type 'promise.Promise<string>' is not assignable to type 'Promise<string>'
body: <p>I am facing some strange issue with the protractor tests. I have used the following piece of code to get the text of the element. </p>
  
  <pre><code>getTitleElementValue(): Promise&lt;string&gt; {
      return this.getTitleElement().getAttribute('value')
    }
  </code></pre>
  
  <p>all went good till I pushed my code to git. Immediately I pulled the latest code and from then I am getting the error  </p>
  
  <pre><code>Type 'promise.Promise&lt;string&gt;' is not assignable to type 'Promise&lt;string&gt;'
  </code></pre>
  
  <p>I am confused with the output and need some some inputs from you regarding the issue. would like to provide any other details. below is the package.json</p>
  
  <pre><code>    {
    "name": "ris-beta",
    "version": "0.0.0",
    "license": "MIT",
    "scripts": {
      "ng": "ng",
      "generate:proxy": "node config/proxy.js",
      "start": "npm run generate:proxy &amp;&amp; ng serve --ssl true --ssl-key config/ssl/localhost.key --ssl-cert config/ssl/localhost.crt --proxy-config proxy.conf.json --host=0.0.0.0",
      "start:http": "npm run generate:proxy &amp;&amp; ng serve --proxy-config proxy.conf.json --host=0.0.0.0",
      "test": "ng test --watch=false",
      "pree2e": "webdriver-manager update --standalone false --gecko false",
      "e2e": "protractor",
      "lint": "ng lint --type-check",
      "deploy": "npm run test &amp;&amp; npm run clean-build &amp;&amp; npm run deploy-only",
      "rimraf": "rimraf",
      "clean:dist": "npm run rimraf -- dist",
      "clean-build": "npm run clean:dist &amp;&amp; ng build -prod --aot=false --sourcemaps",
      "deploy-only": "node config/deploy.js",
      "compodoc": "./node_modules/.bin/compodoc -p src/tsconfig.app.json"
    },
    "private": true,
    "dependencies": {
      "@angular/animations": "^5.0.0-rc.6",
      "@angular/cdk": "^5.2.3",
      "@angular/common": "^5.2.7",
      "@angular/compiler": "^5.2.7",
      "@angular/core": "^5.2.7",
      "@angular/forms": "^5.2.7",
      "@angular/http": "^5.2.7",
      "@angular/material": "^5.2.3",
      "@angular/platform-browser": "^5.2.7",
      "@angular/platform-browser-dynamic": "^5.2.7",
      "@angular/router": "^5.2.7",
      "@ngrx/effects": "^4.1.0",
      "@ngrx/store": "^4.1.0",
      "@ngrx/store-devtools": "^4.0.0",
      "angular-split": "^0.2.7",
      "angular-tree-component": "^5.2.0",
      "bootstrap": "4.0.0-alpha.6",
      "core-js": "^2.4.1",
      "font-awesome": "^4.7.0",
      "ngx-clipboard": "^9.0.0",
      "normalize.css": "^7.0.0",
      "primeng": "^5.0.0",
      "rxjs": "=5.5.2",
      "tinymce": "4.7.4",
      "zone.js": "^0.8.14"
    },
    "devDependencies": {
      "@angular/cli": "1.5.0-rc.3",
      "@angular/compiler-cli": "^5.2.7",
      "@angular/language-service": "^5.2.7",
      "@compodoc/compodoc": "^1.0.8",
      "@types/jasmine": "~2.5.53",
      "@types/jasminewd2": "~2.0.2",
      "@types/node": "^6.0.101",
      "archiver": "2.0.0",
      "codelyzer": "~3.2.0",
      "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",
      "karma-phantomjs-launcher": "^1.0.4",
      "karma-remap-istanbul": "^0.6.0",
      "ngx-clipboard": "^9.0.0",
      "normalize.css": "^7.0.0",
      "phantomjs-polyfill": "0.0.2",
      "protractor": "~5.1.2",
      "quill": "^1.3.4",
      "sync-request": "4.0.3",
      "ts-node": "~3.2.0",
      "tslint": "~5.7.0",
      "typescript": "~2.4.2"
    }
  }
  </code></pre>
  
  <p>Thanks in advance.</p>