Cannot Alert (ToastrService) in Angular 4

I\\\'m trying to use Alerts, but not success. I use it like this import { Component, OnInit } from \\\'@angular/core\\\'; import { NotiService } from \\\'../service/noti/noti.service\\\'; import { ToastrService } from \\\'../angular-bootstrap-md/pro/alerts\\\' @Component({ selector:\\\'app-noti-emg\\\', templateUrl:\\\'./noti-emg.component.html\\\', styleUrls: [\\\'./noti-emg.component.scss\\\'] }) export class NotiEmgComponent implements OnInit { notiList= []; constructor(private notiService:NotiService, private toastrService:ToastrService) { } showSuccess() { this.toastrService.success(\\\'Info message\\\'); } .... } when I ng-serve there\\\'s an error like this ERROR Error: Uncaught (in promise): Error: No provider for InjectionToken ToastConfig!Error: No provider for InjectionToken ToastConfig!at injectionError (core.es5.js:1169)at noProviderError (core.es5.js:1207)at ReflectiveInjector_._throwOrNull (core.es5.js:2649)at ReflectiveInjector_._getByKeyDefault (core.es5.js:2688)at ReflectiveInjector_._getByKey (core.es5.js:2620)at ReflectiveInjector_.get (core.es5.js:2489)at resolveNgModuleDep (core.es5.js:9475)at _createClass (core.es5.js:9526)at _createProviderInstance$1 (core.es5.js:9486)at resolveNgModuleDep (core.es5.js:9471)at injectionError (core.es5.js:1169)at noProviderError (core.es5.js:1207)at ReflectiveInjector_._throwOrNull (core.es5.js:2649)at ReflectiveInjector_._getByKeyDefault (core.es5.js:2688)at ReflectiveInjector_._getByKey (core.es5.js:2620)at ReflectiveInjector_.get (core.es5.js:2489)at resolveNgModuleDep (core.es5.js:9475)at _createClass (core.es5.js:9526)at _createProviderInstance$1 (core.es5.js:9486)at resolveNgModuleDep (core.es5.js:9471)at resolvePromise (zone.js:783)at resolvePromise (zone.js:754)at zone.js:831at ZoneDelegate.invokeTask (zone.js:424)at Object.onInvokeTask (core.es5.js:3881)at ZoneDelegate.invokeTask (zone.js:423)at Zone.runTask (zone.js:191)at drainMicroTaskQueue (zone.js:595)at ZoneTask.invokeTask [as invoke] (zone.js:502)at invokeTask (zone.js:1370) PS. I add ToastrService to app.module.ts already, thanks

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