It's difficult to provide a precise solution without reviewing your code firsthand.
The main issue at hand is that Angular 2 no longer includes RxJS 5 in its Beta stage. To address this, you must import the specific operator(s) you require or import them all collectively. Below are examples of how the import statements should appear:
import 'rxjs/add/operator/map'; // imports just map
import 'rxjs/add/operator/mergeMap'; // just mergeMap
import 'rxjs/add/operator/switchMap'; // just switchMap
import {delay} from 'rxjs/operator/delay'; // just delay
Alternatively, you can import everything using:
import 'rxjs/Rx'; // import everything
To identify the path to your desired module, refer to the source tree. Each import with add will append properties to either Observable or Observable.prototype. Without add, you would need to use
import {foo} from 'rxjs/path/to/foo'
.
Ensure that RxJS is correctly integrated into your project. A snippet such as the following should be included in your index.html file:
System.config({
map: {
'rxjs': 'node_modules/rxjs' // specifies where the above import statement code can be found
},
packages: {
'app': {defaultExtension: 'js'}, // if your app is located in the `app` folder
'rxjs': {defaultExtension: 'js'}
}
});
System.import('app/app'); // main file is `app/app.ts`
If you utilize Webpack for building your Angular 2 application similar to this Github project (as I have), then the System components are unnecessary, and the imports should suffice.