Error catch : Error: Uncaught (in promise): Error: Unexpected directive 't' imported by the module 't'. Please add a @NgModule annotation.
@NgModule({
declarations: [
AppComponent,
MyComboBox
],
imports: [
BrowserModule,
FormsModule,
HttpModule,
DragulaModule,
CoreModule
],
// viewProviders: [ DragulaService ],
providers: [HelperService],
bootstrap: [AppComponent]
})