Job name "..getProjectMetadata" does not exist

Question

I updated my angular to v9 and when I try to go back in v8, I receive this error. I have already tried the following:

• uninstall -global angular/cli
• uninstall angular/cli
• go back to my last package.json
• delete node_module folder
• delete repo

This error continues to show.

My stacktrace is :

An unhandled exception occurred: Job name "..getProjectMetadata" does not exist.
See angular-errors.log for further details.

angular-errors.log :

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

ng --version :

Angular CLI: 8.3.18
Node: 12.15.0
OS: darwin x64
Angular: 8.2.13
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.803.18
@angular-devkit/build-angular     0.900.1
@angular-devkit/build-optimizer   0.900.1
@angular-devkit/build-webpack     0.900.1
@angular-devkit/core              8.3.18
@angular-devkit/schematics        8.3.18
@angular/cdk                      8.2.3
@angular/cli                      8.3.18
@angular/material                 8.2.3
@ngtools/webpack                  9.0.1
@schematics/angular               8.3.18
@schematics/update                0.803.18
rxjs                              6.5.3
typescript                        3.5.3
webpack                           4.41.2

Answer 1

似乎是@angular-devkit/build-angular..的问题。尝试将其降级到特定版本：

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

Answer 2

也跑 npm i @angular-builders/custom-webpack@8.4.1 --save

对我来说Occian的回答是不够的，我也不得不改变@angular-builders/custom-webpack来自latest于8.4.1，因为它有build-angular依赖性了。这是如何弄清楚的：

npm 列表 @angular-devkit/build-angular

reports-web-client@0.0.0 C:\projects\2778\reports-web-client
+-- @angular-builders/custom-webpack@9.1.0
| `-- @angular-devkit/build-angular@0.901.1
`-- @angular-devkit/build-angular@0.803.8

这意味着，我有 2 个版本的包，这就是错误仍然会出现的原因。

Answer 3

就个人而言，最好的解决方案是：

ng update @angular/cli @angular/core

为什么？因为迟早你需要升级到 Angular 9+，而其他解决方案只是将其降级。

我今天面临同样的问题，直到我使用了这个解决方案并且这个解决方案运行良好。

Answer 4

使用以下版本作为当前的角度版本：

@angular-devkit/build-angular@0.8.9 v6-lts

@angular-devkit/build-angular@0.13.10 v7-lts

@angular-devkit/build-angular@0.803.29 v8-lts

@angular-devkit/build-angular@0.901.13 v9-lts

@angular-devkit/build-angular@0.1002.1 v10-lts

查看最后当前标签版本@angular-devkit/build-angular

Answer 5

此命令暂时修复了这种情况：

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

我的 Jenkins 构建要求我运行npm audit fix命令来下载依赖项。此命令再次出现相同的错误。任何人都知道如何使审计命令忽略 angula-devkit？

Answer 6

如果您使用 npm audit fix，请找到您尝试修复的包并恢复到稳定版本并注意漏洞。