Can't resolve 'angular2-rest'

I used angular cli. I installed angular2-rest `npm install angular2-rest`. 
I got an error : 
```
ERROR in ./src/app/services/base-rest-client.service.ts
Module not found: Error: Can't resolve 'angular2-rest' in 'C:\Users\ankar\Projec
ts\hfs\components\src\app\services'
 @ ./src/app/services/base-rest-client.service.ts 16:0-73
 @ ./src/app/app.module.ts
 @ ./src/main.ts
 @ multi main
```