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

Question

在运行npm install然后运行npm update之后，我在使用ng serve时得到以下错误

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angular版本，build-angular就在那里。

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

我也有同样的错误。我修复了以下命令：

使用以下命令安装

1. build-angular：

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

• then install build-ng-packagrnpm i --save-dev @angular-devkit/build-ng-packagr

• finally install ng-packagrnpm i --save-dev ng-packagr

注意:安装包的版本与angular版本相关。

我希望这是有用的。

Answer 2

对我有效的方法是卸载我的@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

尝试这个npm安装--save-dev @angular-devkit/build-angular