node.js 发生未处理的异常：作业名称“..getProjectMetadata”不存在
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An unhandled exception occurred: Job name "..getProjectMetadata" does not exist
提问by vasil001
When I start to run my Application, I get this error:
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)
I have these versions:
Angular CLI: 8.3.19,
Node: 12.14.0.
我有这些版本：
Angular CLI: 8.3.19,
Node: 12.14.0.
Any Idea what causes this problem?
知道是什么导致了这个问题吗？
回答by gattsbr
It seems to be a problem with @angular-devkit/build-angular.
@angular-devkit/build-angular 似乎有问题。
Try updating it by running
尝试通过运行更新它
npm i @angular-devkit/build-angular
Or downgrading it by specifying a previous version, such as
或者通过指定以前的版本来降级，例如
npm i @angular-devkit/[email protected]
回答by Tim
I had this error after npm auditfound vulnerabilities in the version of @angular-devkit/build-angularthat I was using. I ran npm audit fixwhich updated it to 0.900.2, but when I ran ng serveit gave the error quoted in the question.
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。
I resolved it by downgrading to version 0.803.25. This was the highest version I could find which did not cause any errors when running ng serve. The vulnerabilities found by npm auditare resolved in this version.
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。
This is the command I ran:
这是我运行的命令：
npm i @angular-devkit/[email protected]
回答by ColemanTO
I had just created a new project and got this error. Since I had no legacy code I needed to work with and wanted to use the latest (9.0) version of Angular, I ran this command:
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
and it fixed everything.
它修复了一切。
回答by HM23
I had the same problem, and I solved it with installing previous/old version "0.803.24" in this exemple using this command:
我遇到了同样的问题，我通过在本示例中使用以下命令安装以前/旧版本“0.803.24”来解决它：
npm i @angular-devkit/[email protected]
回答by prosper1
For IONIC 5 the following downgrades worked for me.
对于 IONIC 5，以下降级对我有用。
npm i @angular-devkit/[email protected]
npm i @angular-devkit/[email protected]
Other versions has a high vulnerability warning and risks
其他版本存在高漏洞预警和风险
回答by Muhammad Arslan
update @angular-devkit/build-angular version .
更新@angular-devkit/build-angular 版本。
回答by Santa
Downgrading to npm i @angular-devkit/[email protected] this version helped me!
降级到 npm i @angular-devkit/[email protected] 这个版本对我有帮助！
回答by Jigar Jadav
Try build-angular version 0.803.24 usng commad: npm i @angular-devkit/[email protected]
尝试构建角度版本 0.803.24 使用命令： npm i @angular-devkit/[email protected]
回答by Soura Sankar Ghosh
Try the following command hopefully, it will be solved
希望尝试以下命令，它会解决
npm i @angular-devkit/[email protected]
回答by Birhan Nega
if npm audit gives you an error. downgrading version will solve it. upgrading version did not work for me
如果 npm 审计给你一个错误。降级版本即可解决。升级版本对我不起作用
npm i @angular-devkit/[email protected]
