ERROR in NgSearchboxModule is not an NgModule

[FaroukBENGHARSSALLAH]

Hi,

I was working on working your awsome input search box in my project. So, i start by adding the dependencies by :
npm install "https://github.com/tybeck/angular2-searchbox.git"
Then, i added the 'NgSearchboxModule' in the app module file

`import { CommonModule } from "@angular/common";
 import { NgModule } from "@angular/core";
 import { FormsModule } from "@angular/forms";
 import { BrowserModule } from "@angular/platform-browser";
 import { HttpModule } from "@angular/http";
 import {AppRoutingModule} from "./app-routing.module";
 import { NgSearchboxModule } from "angular2-searchbox";
 import { AppComponent } from "./app.component";
 import { ListComponent } from  "./list/list.component";
 import { SearchboxComponent } from "./searchbox/searchbox.component"  `;

@NgModule({ declarations: [ AppComponent, ListComponent, SearchboxComponent ], imports: [BrowserModule, CommonModule, FormsModule, HttpModule, AppRoutingModule, NgSearchboxModule], bootstrap: [AppComponent] }) export class AppModule { }

But when i build the project, it throws an error:
ERROR in NgSearchboxModule is not an NgModule

This is a list of ng version:
@angular/cli: 1.0.4 node: 6.10.3 os: win32 x64 @angular/common: 4.1.3 @angular/compiler: 4.1.3 @angular/core: 4.1.3 @angular/forms: 4.1.3 @angular/http: 4.1.3 @angular/platform-browser: 4.1.3 @angular/platform-browser-dynamic: 4.1.3 @angular/router: 4.1.3 @angular/cli: 1.0.4 @angular/compiler-cli: 4.1.3

How i can remove this error ?