Angular2-路由错误_Angular_Angular Router

Angular2-路由错误

angular

Angular2-路由错误,angular,angular-router,Angular,Angular Router,我继承了一个Angular2应用程序。这是一个定制的It票务系统。我们有一个主菜单（main.component），用户可以在其中看到他们分配的票证列表。他们单击一个链接将他们带到该票据的详细信息页面。在ticket页面（ticket.component），一旦进行了更改，用户单击“保存并退出”。然后，这将向RESTful API发送post请求，其中包含许多关于票据的属性。这是通过自定义服务（ticketService.SaveTicket）完成的。这将返回订阅。post数据完成后，我希望应

我继承了一个Angular2应用程序。这是一个定制的It票务系统。我们有一个主菜单（main.component），用户可以在其中看到他们分配的票证列表。他们单击一个链接将他们带到该票据的详细信息页面。在ticket页面（ticket.component），一旦进行了更改，用户单击“保存并退出”。然后，这将向RESTful API发送post请求，其中包含许多关于票据的属性。这是通过自定义服务（ticketService.SaveTicket）完成的。这将返回订阅。post数据完成后，我希望应用程序导航回主菜单。下面是按钮“保存和退出”的单击事件的附加方法

每当用户单击此按钮时，控制台中将出现以下错误：

EXCEPTION: Uncaught (in promise): Error: Error in http://localhost:3000/app/components/ticket/ticket.component.html:28:24 caused by: Cannot read property 'parentElement' of null

显然，由于该错误，应用程序无法导航到“main”。浏览器窗口也完全为空（表示JS错误）

老实说，我不知道它指的是哪个parentElement。我相信罪魁祸首在于this.router.Navigate行，因为当我注释掉它时，错误不会出现，浏览器也不会空白

有人知道为什么会发生这种情况吗？任何建议都将不胜感激

编辑：下面是ticket.component.html的一个片段-从第27行开始

<td style="text-align: right; width: 70%;">
    <span class="selectAutoResponse">Select Auto Repsonse:</span>
    <kendo-combobox [data]="autoResponse" [placeholder]="'- Select Value -'" [value]="selectedAutoResponse" [textField]="'ValueText'" [valueField]="'ID'" style="width: 350px" (valueChange)="handleAutoResponseChange($event)"></kendo-combobox>
</td>


选择自动更换：

编辑：以下是控制台错误的完整摘录：

:3000/node_modules/@angular/core/bundles/core.umd.js:3064 EXCEPTION: Uncaught (in promise): Error: Error in http://localhost:3000/app/components/ticket/ticket.component.html:28:24 caused by: Cannot read property 'parentElement' of null
Error: Error in http://localhost:3000/app/components/ticket/ticket.component.html:28:24 caused by: Cannot read property 'parentElement' of null
    at ViewWrappedError.ZoneAwareError (http://localhost:3000/node_modules/zone.js/dist/zone.js:992:33)
    at ViewWrappedError.BaseError [as constructor] (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1239:20)
    at ViewWrappedError.WrappedError [as constructor] (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1297:20)
    at new ViewWrappedError (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:6167:20)
    at View_TicketComponent3.DebugAppView._rethrowWithContext (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12385:27)
    at View_TicketComponent3.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12344:22)
    at ViewContainer.destroyNestedViews (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12476:41)
    at View_TicketComponent1.destroyInternal (/AppModule/TicketComponent/component.ngfactory.js:2598:15)
    at View_TicketComponent1.AppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:11986:18)
    at View_TicketComponent1.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12341:42)
    at ViewContainer.destroyNestedViews (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12476:41)
    at CompiledTemplate.proxyViewClass.View_TicketComponent0.destroyInternal (/AppModule/TicketComponent/component.ngfactory.js:2907:14)
    at CompiledTemplate.proxyViewClass.AppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:11986:18)
    at CompiledTemplate.proxyViewClass.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12341:42)
    at CompiledTemplate.proxyViewClass.View_TicketComponent_Host0.destroyInternal (/AppModule/TicketComponent/host.ngfactory.js:33:19)
ErrorHandler.handleError @ :3000/node_modules/@angular/core/bundles/core.umd.js:3064
:3000/node_modules/@angular/core/bundles/core.umd.js:3069 ORIGINAL STACKTRACE:
ErrorHandler.handleError @ :3000/node_modules/@angular/core/bundles/core.umd.js:3069
:3000/node_modules/@angular/core/bundles/core.umd.js:3070 Error: Uncaught (in promise): Error: Error in http://localhost:3000/app/components/ticket/ticket.component.html:28:24 caused by: Cannot read property 'parentElement' of null
Error: Error in http://localhost:3000/app/components/ticket/ticket.component.html:28:24 caused by: Cannot read property 'parentElement' of null
    at ViewWrappedError.ZoneAwareError (http://localhost:3000/node_modules/zone.js/dist/zone.js:992:33)
    at ViewWrappedError.BaseError [as constructor] (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1239:20)
    at ViewWrappedError.WrappedError [as constructor] (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1297:20)
    at new ViewWrappedError (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:6167:20)
    at View_TicketComponent3.DebugAppView._rethrowWithContext (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12385:27)
    at View_TicketComponent3.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12344:22)
    at ViewContainer.destroyNestedViews (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12476:41)
    at View_TicketComponent1.destroyInternal (/AppModule/TicketComponent/component.ngfactory.js:2598:15)
    at View_TicketComponent1.AppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:11986:18)
    at View_TicketComponent1.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12341:42)
    at ViewContainer.destroyNestedViews (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12476:41)
    at CompiledTemplate.proxyViewClass.View_TicketComponent0.destroyInternal (/AppModule/TicketComponent/component.ngfactory.js:2907:14)
    at CompiledTemplate.proxyViewClass.AppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:11986:18)
    at CompiledTemplate.proxyViewClass.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12341:42)
    at CompiledTemplate.proxyViewClass.View_TicketComponent_Host0.destroyInternal (/AppModule/TicketComponent/host.ngfactory.js:33:19)
    at resolvePromise (http://localhost:3000/node_modules/zone.js/dist/zone.js:665:31) [angular]
    at resolvePromise (http://localhost:3000/node_modules/zone.js/dist/zone.js:636:17) [angular]
    at http://localhost:3000/node_modules/zone.js/dist/zone.js:713:17 [angular]
    at Object.onInvokeTask (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:3971:41) [angular]
    at ZoneDelegate.invokeTask (http://localhost:3000/node_modules/zone.js/dist/zone.js:366:36) [angular]
    at Zone.runTask (http://localhost:3000/node_modules/zone.js/dist/zone.js:166:47) [<root> => angular]
    at drainMicroTaskQueue (http://localhost:3000/node_modules/zone.js/dist/zone.js:546:35) [<root>]
    at XMLHttpRequest.ZoneTask.invoke (http://localhost:3000/node_modules/zone.js/dist/zone.js:424:25) [<root>]
ErrorHandler.handleError @ :3000/node_modules/@angular/core/bundles/core.umd.js:3070
zone.js:522 Unhandled Promise rejection: Error in http://localhost:3000/app/components/ticket/ticket.component.html:28:24 caused by: Cannot read property 'parentElement' of null ; Zone: angular ; Task: Promise.then ; Value: ViewWrappedError Error: Error in http://localhost:3000/app/components/ticket/ticket.component.html:28:24 caused by: Cannot read property 'parentElement' of null
    at ViewWrappedError.ZoneAwareError (http://localhost:3000/node_modules/zone.js/dist/zone.js:992:33)
    at ViewWrappedError.BaseError [as constructor] (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1239:20)
    at ViewWrappedError.WrappedError [as constructor] (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1297:20)
    at new ViewWrappedError (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:6167:20)
    at View_TicketComponent3.DebugAppView._rethrowWithContext (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12385:27)
    at View_TicketComponent3.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12344:22)
    at ViewContainer.destroyNestedViews (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12476:41)
    at View_TicketComponent1.destroyInternal (/AppModule/TicketComponent/component.ngfactory.js:2598:15)
    at View_TicketComponent1.AppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:11986:18)
    at View_TicketComponent1.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12341:42)
    at ViewContainer.destroyNestedViews (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12476:41)
    at CompiledTemplate.proxyViewClass.View_TicketComponent0.destroyInternal (/AppModule/TicketComponent/component.ngfactory.js:2907:14)
    at CompiledTemplate.proxyViewClass.AppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:11986:18)
    at CompiledTemplate.proxyViewClass.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12341:42)
    at CompiledTemplate.proxyViewClass.View_TicketComponent_Host0.destroyInternal (/AppModule/TicketComponent/host.ngfactory.js:33:19)
consoleError @ zone.js:522
zone.js:524 ZoneAwareError

：3000/node_modules/@angular/core/bundles/core.umd.js:3064异常：未捕获（承诺中）：错误：错误http://localhost:3000/app/components/ticket/ticket.component.html:28:24 原因：无法读取null的属性“parentElement”
错误：错误在http://localhost:3000/app/components/ticket/ticket.component.html:28:24 原因：无法读取null的属性“parentElement”
在ViewWrappedError.ZoneAwareError(http://localhost:3000/node_modules/zone.js/dist/zone.js:992:33)
在ViewWrappedError.BaseError[作为构造函数](http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:1239:20）
在ViewWrappedError.WrappedError[作为构造函数](http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:1297:20）
在NewViewWrappederRor(http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:6167:20）
在View_ticketComponent 3.DebugAppView.\u使用上下文返回箭头(http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:12385:27）
在View_TicketComponent3.DebugAppView.destroy上(http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:12344:22）
在ViewContainer.destroyNestedViews中(http://localhost:3000/node_modules/@角度/核心/束/核心。umd.js:12476:41）
查看\u TicketComponent 1.destroyInternal（/AppModule/TicketComponent/component.ngfactory.js:2598:15）
在View_ticketComponent 1.AppView.destroy上(http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:11986:18）
在View_ticketComponent 1.DebugAppView.destroy上(http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:12341:42）
在ViewContainer.destroyNestedViews中(http://localhost:3000/node_modules/@角度/核心/束/核心。umd.js:12476:41）
在CompiledTemplate.proxyViewClass.View_TicketComponent 0.destroyInternal（/AppModule/TicketComponent/component.ngfactory.js:2907:14）
在CompiledTemplate.proxyViewClass.AppView.destroy处(http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:11986:18）
在CompiledTemplate.proxyViewClass.DebugAppView.destroy(http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:12341:42）
在CompiledTemplate.proxyViewClass.View_TicketComponent_Host0.destroyInternal（/AppModule/TicketComponent/host.ngfactory.js:33:19）
ErrorHandler.handleError@:3000/node_modules/@angular/core/bundles/core.umd.js:3064
：3000/node_modules/@angular/core/bundles/core.umd.js:3069原始堆栈跟踪：
ErrorHandler.handleError@:3000/node_modules/@angular/core/bundles/core.umd.js:3069
：3000/node_modules/@angular/core/bundles/core.umd.js:3070错误：未捕获（承诺中）：错误：错误http://localhost:3000/app/components/ticket/ticket.component.html:28:24 原因：无法读取null的属性“parentElement”
错误：错误在http://localhost:3000/app/components/ticket/ticket.component.html:28:24 原因：无法读取null的属性“parentElement”
在ViewWrappedError.ZoneAwareError(http://localhost:3000/node_modules/zone.js/dist/zone.js:992:33)
在ViewWrappedError.BaseError[作为构造函数](http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:1239:20）
在ViewWrappedError.WrappedError[作为构造函数](http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:1297:20）
在NewViewWrappederRor(http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:6167:20）
在View_ticketComponent 3.DebugAppView.\u使用上下文返回箭头(http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:12385:27）
在View_TicketComponent3.DebugAppView.destroy上(http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:12344:22）
在ViewContainer.destroyNestedViews中(http://localhost:3000/node_modules/@角度/核心/束/核心。umd.js:12476:41）
查看\u TicketComponent 1.destroyInternal（/AppModule/TicketComponent/component.ngfactory.js:2598:15）
在View_ticketComponent 1.AppView.destroy上(http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:11986:18）
在View_ticketComponent 1.DebugAppView.destroy上(http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:12341:42）
在ViewContainer.destroyNestedViews中(http://localhost:3000/node_modules/@角度/核心/束/核心。umd.js:12476:41）
在CompiledTemplate.proxyViewClass.View_TicketComponent 0.destroyInternal（/AppModule/TicketComponent/component.ngfactory.js:2907:14）
在CompiledTemplate.proxyViewClass.AppView.destroy处(http://localhost:3000/node_modules/@角度/核心/束/核心.umd.js:11986:18）
:3000/node_modules/@angular/core/bundles/core.umd.js:3064 EXCEPTION: Uncaught (in promise): Error: Error in http://localhost:3000/app/components/ticket/ticket.component.html:28:24 caused by: Cannot read property 'parentElement' of null
Error: Error in http://localhost:3000/app/components/ticket/ticket.component.html:28:24 caused by: Cannot read property 'parentElement' of null
    at ViewWrappedError.ZoneAwareError (http://localhost:3000/node_modules/zone.js/dist/zone.js:992:33)
    at ViewWrappedError.BaseError [as constructor] (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1239:20)
    at ViewWrappedError.WrappedError [as constructor] (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1297:20)
    at new ViewWrappedError (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:6167:20)
    at View_TicketComponent3.DebugAppView._rethrowWithContext (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12385:27)
    at View_TicketComponent3.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12344:22)
    at ViewContainer.destroyNestedViews (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12476:41)
    at View_TicketComponent1.destroyInternal (/AppModule/TicketComponent/component.ngfactory.js:2598:15)
    at View_TicketComponent1.AppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:11986:18)
    at View_TicketComponent1.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12341:42)
    at ViewContainer.destroyNestedViews (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12476:41)
    at CompiledTemplate.proxyViewClass.View_TicketComponent0.destroyInternal (/AppModule/TicketComponent/component.ngfactory.js:2907:14)
    at CompiledTemplate.proxyViewClass.AppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:11986:18)
    at CompiledTemplate.proxyViewClass.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12341:42)
    at CompiledTemplate.proxyViewClass.View_TicketComponent_Host0.destroyInternal (/AppModule/TicketComponent/host.ngfactory.js:33:19)
ErrorHandler.handleError @ :3000/node_modules/@angular/core/bundles/core.umd.js:3064
:3000/node_modules/@angular/core/bundles/core.umd.js:3069 ORIGINAL STACKTRACE:
ErrorHandler.handleError @ :3000/node_modules/@angular/core/bundles/core.umd.js:3069
:3000/node_modules/@angular/core/bundles/core.umd.js:3070 Error: Uncaught (in promise): Error: Error in http://localhost:3000/app/components/ticket/ticket.component.html:28:24 caused by: Cannot read property 'parentElement' of null
Error: Error in http://localhost:3000/app/components/ticket/ticket.component.html:28:24 caused by: Cannot read property 'parentElement' of null
    at ViewWrappedError.ZoneAwareError (http://localhost:3000/node_modules/zone.js/dist/zone.js:992:33)
    at ViewWrappedError.BaseError [as constructor] (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1239:20)
    at ViewWrappedError.WrappedError [as constructor] (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1297:20)
    at new ViewWrappedError (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:6167:20)
    at View_TicketComponent3.DebugAppView._rethrowWithContext (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12385:27)
    at View_TicketComponent3.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12344:22)
    at ViewContainer.destroyNestedViews (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12476:41)
    at View_TicketComponent1.destroyInternal (/AppModule/TicketComponent/component.ngfactory.js:2598:15)
    at View_TicketComponent1.AppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:11986:18)
    at View_TicketComponent1.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12341:42)
    at ViewContainer.destroyNestedViews (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12476:41)
    at CompiledTemplate.proxyViewClass.View_TicketComponent0.destroyInternal (/AppModule/TicketComponent/component.ngfactory.js:2907:14)
    at CompiledTemplate.proxyViewClass.AppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:11986:18)
    at CompiledTemplate.proxyViewClass.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12341:42)
    at CompiledTemplate.proxyViewClass.View_TicketComponent_Host0.destroyInternal (/AppModule/TicketComponent/host.ngfactory.js:33:19)
    at resolvePromise (http://localhost:3000/node_modules/zone.js/dist/zone.js:665:31) [angular]
    at resolvePromise (http://localhost:3000/node_modules/zone.js/dist/zone.js:636:17) [angular]
    at http://localhost:3000/node_modules/zone.js/dist/zone.js:713:17 [angular]
    at Object.onInvokeTask (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:3971:41) [angular]
    at ZoneDelegate.invokeTask (http://localhost:3000/node_modules/zone.js/dist/zone.js:366:36) [angular]
    at Zone.runTask (http://localhost:3000/node_modules/zone.js/dist/zone.js:166:47) [<root> => angular]
    at drainMicroTaskQueue (http://localhost:3000/node_modules/zone.js/dist/zone.js:546:35) [<root>]
    at XMLHttpRequest.ZoneTask.invoke (http://localhost:3000/node_modules/zone.js/dist/zone.js:424:25) [<root>]
ErrorHandler.handleError @ :3000/node_modules/@angular/core/bundles/core.umd.js:3070
zone.js:522 Unhandled Promise rejection: Error in http://localhost:3000/app/components/ticket/ticket.component.html:28:24 caused by: Cannot read property 'parentElement' of null ; Zone: angular ; Task: Promise.then ; Value: ViewWrappedError Error: Error in http://localhost:3000/app/components/ticket/ticket.component.html:28:24 caused by: Cannot read property 'parentElement' of null
    at ViewWrappedError.ZoneAwareError (http://localhost:3000/node_modules/zone.js/dist/zone.js:992:33)
    at ViewWrappedError.BaseError [as constructor] (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1239:20)
    at ViewWrappedError.WrappedError [as constructor] (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1297:20)
    at new ViewWrappedError (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:6167:20)
    at View_TicketComponent3.DebugAppView._rethrowWithContext (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12385:27)
    at View_TicketComponent3.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12344:22)
    at ViewContainer.destroyNestedViews (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12476:41)
    at View_TicketComponent1.destroyInternal (/AppModule/TicketComponent/component.ngfactory.js:2598:15)
    at View_TicketComponent1.AppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:11986:18)
    at View_TicketComponent1.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12341:42)
    at ViewContainer.destroyNestedViews (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12476:41)
    at CompiledTemplate.proxyViewClass.View_TicketComponent0.destroyInternal (/AppModule/TicketComponent/component.ngfactory.js:2907:14)
    at CompiledTemplate.proxyViewClass.AppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:11986:18)
    at CompiledTemplate.proxyViewClass.DebugAppView.destroy (http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:12341:42)
    at CompiledTemplate.proxyViewClass.View_TicketComponent_Host0.destroyInternal (/AppModule/TicketComponent/host.ngfactory.js:33:19)
consoleError @ zone.js:522
zone.js:524 ZoneAwareError