fix(error message): fix error message browser.get (#4065)

lib/browser.ts

@@ -933,7 +933,7 @@ export class ProtractorBrowser extends AbstractExtendedWebDriver {
  let message = angularTestResult.message;
  logger.error(`Could not find Angular on page ${destination} : ${message}`);
  throw new Error(
- 'Angular could not be found on the page ${destination}.' +
+ `Angular could not be found on the page ${destination}.` +
  `If this is not an Angular application, you may need to turn off waiting for Angular.
  Please see 
  https://github.com/angular/protractor/blob/master/docs/timeouts.md#waiting-for-angular-on-page-load`);