发生未处理的异常：作业名称“..getProjectMetadata”不存在

Question

当我开始运行我的应用程序时，我收到此错误：

**[error] Error: Job name "..getProjectMetadata" does not exist.**
     at Observable._subscribe (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/src/experimental/jobs/simple-scheduler.js:350:23)
     at Observable._trySubscribe (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/Observable.js:44:25)
     at Observable.subscribe (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/Observable.js:30:22)
     at /Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/util/subscribeTo.js:22:31
     at Object.subscribeToResult (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/util/subscribeToResult.js:10:45)
     at SwitchMapSubscriber._innerSub (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/operators/switchMap.js:65:54)
     at SwitchMapSubscriber._next (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/operators/switchMap.js:55:14)
     at SwitchMapSubscriber.Subscriber.next (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/Subscriber.js:66:18)
     at SwitchMapSubscriber.notifyNext (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/operators/switchMap.js:86:26)
     at InnerSubscriber._next (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/InnerSubscriber.js:28:21)
     at InnerSubscriber.Subscriber.next (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/Subscriber.js:66:18)
     at /Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/util/subscribeTo.js:17:28
     at Object.subscribeToResult (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/util/subscribeToResult.js:10:45)
     at SwitchMapSubscriber._innerSub (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/operators/switchMap.js:65:54)
     at SwitchMapSubscriber._next (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/operators/switchMap.js:55:14)
     at SwitchMapSubscriber.Subscriber.next (/Users/vasil/KSS/kssfrontend/node_modules/@angular-devkit/core/node_modules/rxjs/internal/Subscriber.js:66:18)

我有这些版本： Angular CLI: 8.3.19, Node: 12.14.0.

知道是什么导致了这个问题吗？

Answer 1

@angular-devkit/build-angular 似乎有问题。

尝试通过运行更新它

npm i @angular-devkit/build-angular

或者通过指定以前的版本来降级，例如

npm i @angular-devkit/build-angular@0.803.24

Answer 2

npm audit在@angular-devkit/build-angular我使用的版本中发现漏洞后，我遇到了这个错误。我跑了npm audit fix它更新它0.900.2，但是当我运行ng serve它时，它给出了问题中引用的错误。

我通过降级到 version 解决了它0.803.25。这是我能找到的最高版本，它在运行时不会导致任何错误ng serve。发现的漏洞npm audit在此版本中得到解决。

这是我运行的命令：

npm i @angular-devkit/build-angular@0.803.25

Answer 3

我刚刚创建了一个新项目并收到此错误。由于我没有需要使用的遗留代码并且想使用最新的 (9.0) 版本的 Angular，我运行了以下命令：

ng update @angular/cli @angular/core

它修复了一切。

Answer 4

更新@angular-devkit/build-angular 版本。