如何跟踪一个`EmptyError：没有元素在一个角度项目中的顺序`bug

  • Z时代
  • 2024-01-10
  • 分类：问答

我正在处理一个引发错误的Angular项目：core.js:1350 ERROR Error: Uncaught (in promise): EmptyError: no elements in sequence，但我似乎无法追踪它到我的任何应用程序源代码码。堆栈跟踪都指向rxjs类。如何跟踪一个`EmptyError：没有元素在一个角度项目中的顺序`bug

任何人都可以告诉我如何调试此错误，以便我可以得到在代码中的真正的错误？

core.js:1350 ERROR Error: Uncaught (in promise): EmptyError: no elements in sequence 
EmptyError: no elements in sequence 
    at new EmptyError (EmptyError.js:28) 
    at FirstSubscriber._complete (first.js:154) 
    at FirstSubscriber.Subscriber.complete (Subscriber.js:122) 
    at MergeMapSubscriber._complete (mergeMap.js:150) 
    at MergeMapSubscriber.Subscriber.complete (Subscriber.js:122) 
    at MapSubscriber.Subscriber._complete (Subscriber.js:140) 
    at MapSubscriber.Subscriber.complete (Subscriber.js:122) 
    at ArrayObservable._subscribe (ArrayObservable.js:124) 
    at ArrayObservable.Observable._trySubscribe (Observable.js:172) 
    at ArrayObservable.Observable.subscribe (Observable.js:160) 
    at new EmptyError (EmptyError.js:28) 
    at FirstSubscriber._complete (first.js:154) 
    at FirstSubscriber.Subscriber.complete (Subscriber.js:122) 
    at MergeMapSubscriber._complete (mergeMap.js:150) 
    at MergeMapSubscriber.Subscriber.complete (Subscriber.js:122) 
    at MapSubscriber.Subscriber._complete (Subscriber.js:140) 
    at MapSubscriber.Subscriber.complete (Subscriber.js:122) 
    at ArrayObservable._subscribe (ArrayObservable.js:124) 
    at ArrayObservable.Observable._trySubscribe (Observable.js:172) 
    at ArrayObservable.Observable.subscribe (Observable.js:160) 
    at resolvePromise (zone.js:824) 
    at resolvePromise (zone.js:795) 
    at eval (zone.js:873) 
    at ZoneDelegate.invokeTask (zone.js:425) 
    at Object.onInvokeTask (core.js:4621) 
    at ZoneDelegate.invokeTask (zone.js:424) 
    at Zone.runTask (zone.js:192) 
    at drainMicroTaskQueue (zone.js:602) 
    at <anonymous>

回答：

此错误是由于Angular路由器的最新版本。 您可以反转您的版本或追加pathMatch: 'full'到您的所有路线。

参见github issue。

Example

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