Question

先运行npm install然后运行npm update，然后使用ng serve时出现此错误：

Could not find module "@angular-devkit/build-angular" from "C:\\Users\\Matt\\Coding\\chart".
Error: Could not find module "@angular-devkit/build-angular" from "C:\\Users\\Matt\\Coding\\chart".

然后检查角度版本，在那里有build-angular。

ng version

-

Package                            Version
------------------------------------------------------------
@angular-devkit/architect          0.11.0 (cli-only)
@angular-devkit/build-angular      <error>
@angular-devkit/build-ng-packagr   <error>
@angular-devkit/core               7.1.0 (cli-only)
@angular-devkit/schematics         7.1.0 (cli-only)
@schematics/angular                7.1.0 (cli-only)
@schematics/update                 0.11.0 (cli-only)
ng-packagr                         <error>
rxjs                               6.3.3 (cli-only)
typescript                         3.1.6 (cli-only)

Answer 1

我有同样的错误。我用以下命令修复了该问题：

使用以下命令安装build-angular：

  `npm i --save-dev @angular-devkit/build-angular`

然后安装build-ng-packagr：

  `npm i --save-dev @angular-devkit/build-ng-packagr`

最终安装ng-packagr：
```
  `npm i --save-dev ng-packagr`
```

注意：已安装软件包的版本将与angular版本相关。

我希望是有用的。

Answer 2

对我有用的是卸载@ angular / cli，然后删除node_modules目录和package-lock.json文件，然后重新安装@ angular / cli。示例：

#npm uninstall  @angular/cli@7.1.3
#rm -rf node_modules
#rm package-lock.json
#npm install  @angular/cli@7.1.3

Answer 3

尝试一下 npm install --save-dev @ angular-devkit / build-angular

Answer 4

您没看过这两行吗？

@angular-devkit/build-angular      <error>
@angular-devkit/build-ng-packagr   <error>

我今天遇到了类似的问题，并通过npm uninstall @angular/cli@7.3.8解决了；只是，仅此而已，然后我可以按预期运行ng build --prod --stats-json。

在卸载之前，存在与您相似的错误，但我的错误是@angular-devkit/build-ng-packagr。

$ ng build --stats-json
Could not find module "@angular-devkit/build-ng-packagr" from "/home/hearen/git/repos/ng-hue-lib".
Error: Could not find module "@angular-devkit/build-ng-packagr" from "/home/hearen/git/repos/ng-hue-lib".
    at Object.resolve (/home/hearen/git/repos/ng-hue-lib/node_modules/@angular-devkit/core/node/resolve.js:141:11)
    at Observable.rxjs_1.Observable [as _subscribe] (/home/hearen/git/repos/ng-hue-lib/node_modules/@angular-devkit/architect/src/architect-legacy.js:153:40)
    at Observable._trySubscribe (/home/hearen/git/repos/ng-hue-lib/node_modules/@angular-devkit/architect/node_modules/rxjs/internal/Observable.js:44:25)
    at Observable.subscribe (/home/hearen/git/repos/ng-hue-lib/node_modules/@angular-devkit/architect/node_modules/rxjs/internal/Observable.js:30:22)
    at /home/hearen/git/repos/ng-hue-lib/node_modules/@angular-devkit/architect/node_modules/rxjs/internal/Observable.js:99:19
    at new Promise (<anonymous>)
    at Observable.toPromise (/home/hearen/git/repos/ng-hue-lib/node_modules/@angular-devkit/architect/node_modules/rxjs/internal/Observable.js:97:16)
    at BuildCommand.initialize (/home/hearen/git/repos/ng-hue-lib/node_modules/@angular/cli/models/architect-command.js:67:96)
    at process._tickCallback (internal/process/next_tick.js:68:7)
    at Function.Module.runMain (internal/modules/cjs/loader.js:745:11)
    at startup (internal/bootstrap/node.js:279:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:696:3)

...

Package                            Version
------------------------------------------------------------
@angular-devkit/architect          0.13.8
@angular-devkit/build-angular      0.13.8
@angular-devkit/build-ng-packagr   <error>
@angular-devkit/build-optimizer    0.13.8
@angular-devkit/build-webpack      0.13.8
@angular-devkit/core               7.3.8
@angular-devkit/schematics         7.3.8
@angular/cdk                       7.3.7
@angular/cli                       7.3.8
@ngtools/json-schema               1.1.0
@ngtools/webpack                   7.3.8
@schematics/angular                7.3.8
@schematics/update                 0.13.8
ng-packagr                         5.0.1
rxjs                               6.4.0
typescript                         3.1.6
webpack                            4.29.0

npm安装后找不到模块“ @ angular-devkit / build-angular”

4 个答案: