如何解决角项目生成问题

Question

我正在尝试用ng new project-name安装一个新的角度启动器项目，但每次我最终得到以下错误代码

PS H:\Desktop\cool-app> ng serve
Could not find module "@angular-devkit/build-angular" from "H:\\Desktop\\cool-app".
Error: Could not find module "@angular-devkit/build-angular" from "H:\\Desktop\\cool-app".
    at Object.resolve (C:\Users\G01205980\AppData\Roaming\npm\node_modules\@angular\cli\node_modules\@angular-devkit\core\node\resolve.js:141:11)
    at Observable.rxjs_1.Observable [as _subscribe] (C:\Users\G01205980\AppData\Roaming\npm\node_modules\@angular\cli\node_modules\@angular-devkit\architect\src\architect-legacy.js:153:40)
    at Observable._trySubscribe (C:\Users\G01205980\AppData\Roaming\npm\node_modules\@angular\cli\node_modules\rxjs\internal\Observable.js:44:25)
    at Observable.subscribe (C:\Users\G01205980\AppData\Roaming\npm\node_modules\@angular\cli\node_modules\rxjs\internal\Observable.js:30:22)
    at C:\Users\G01205980\AppData\Roaming\npm\node_modules\@angular\cli\node_modules\rxjs\internal\Observable.js:99:19
    at new Promise (<anonymous>)
    at Observable.toPromise (C:\Users\G01205980\AppData\Roaming\npm\node_modules\@angular\cli\node_modules\rxjs\internal\Observable.js:97:16)
    at ServeCommand.initialize (C:\Users\G01205980\AppData\Roaming\npm\node_modules\@angular\cli\models\architect-command.js:130:86)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:188:7)
    at Function.Module.runMain (module.js:695:11)
    at startup (bootstrap_node.js:188:16)
    at bootstrap_node.js:609:3
PS H:\Desktop\cool-app> npm install
Terminate batch job (Y/N)?
Terminate batch job (Y/N)? n
PS H:\Desktop\cool-app> npm install
[       ...........] \ postinstall: sill install executeActions

Answer 1

看起来没有安装节点依赖项

运行npm install然后再试一次

Answer 2

将@angular-devkit/build-angular安装为dev依赖项。

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

要么，

yarn add @angular-devkit/build-angular --dev