将 angular-cli 从版本 4 升级到 7 后 npm install 中断答案

【问题标题】：npm install breaks after upgrading angular-cli from version 4 to 7将 angular-cli 从版本 4 升级到 7 后 npm install 中断
【发布时间】：2019-05-24 00:27:48
【问题描述】：

我正在尝试将我的 Angular4 项目之一转换为 Angular7。这些是我将 Angular4 项目转换为 Angular7 所遵循的步骤。

我卸载了旧版本的 angular-cli
我安装了 angular-cli 的更新版本
现在，当我尝试执行 npm install 时，它给了我如下所述的错误。

如果我没有按照正确的步骤升级到 Angular7，请纠正我

compiler_cli_1.readConfiguration is not a function
TypeError: compiler_cli_1.readConfiguration is not a function
at AngularCompilerPlugin._setupOptions (V:\LamdaAngular\livepinangularwebsite\node_modules\@ngtools\webpack\src\angular_compiler_plugin.js:91:39)
at new AngularCompilerPlugin (V:\LamdaAngular\livepinangularwebsite\node_modules\@ngtools\webpack\src\angular_compiler_plugin.js:52:14)
at _createAotPlugin (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\src\angular-cli-files\models\webpack-configs\typescript.js:41:12)
at Object.getNonAotConfig (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\src\angular-cli-files\models\webpack-configs\typescript.js:47:19)
at BrowserBuilder.buildWebpackConfig (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\src\browser\index.js:84:37)
at DevServerBuilder.buildWebpackConfig (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\src\dev-server\index.js:111:46)
at MergeMapSubscriber.check_port_1.checkPort.pipe.operators_1.concatMap [as project] (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\src\dev-server\index.js:38:40)
at MergeMapSubscriber._tryNext (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\node_modules\rxjs\internal\operators\mergeMap.js:69:27)
at MergeMapSubscriber._next (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\node_modules\rxjs\internal\operators\mergeMap.js:59:18)
at MergeMapSubscriber.Subscriber.next (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\node_modules\rxjs\internal\Subscriber.js:67:18)
at TapSubscriber._next (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\node_modules\rxjs\internal\operators\tap.js:65:26)
at TapSubscriber.Subscriber.next (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\node_modules\rxjs\internal\Subscriber.js:67:18)
at MergeMapSubscriber.notifyNext (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\node_modules\rxjs\internal\operators\mergeMap.js:92:26)
at InnerSubscriber._next (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\node_modules\rxjs\internal\InnerSubscriber.js:28:21)
at InnerSubscriber.Subscriber.next (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\node_modules\rxjs\internal\Subscriber.js:67:18)
at ForkJoinSubscriber.notifyComplete (V:\LamdaAngular\livepinangularwebsite\node_modules\@angular-devkit\build-angular\node_modules\rxjs\internal\observable\forkJoin.js:82:25)

【问题讨论】：

请添加导致问题的代码。
您的问题被否决，因为没有足够的信息让我们真正提供帮助。我发现了一个相关的问题，并建议使用更新版本的 Angular CLI。你可以在这里找到：github.com/angular/angular-cli/issues/8287
我已经用问题的详细信息更新了我的问题

标签： angular angular-cli

【解决方案1】：

这肯定会解决这个ng update @angular/compiler-cli --force 和这个ng update @angular/cli --force

【讨论】：

【解决方案2】：

这对我有用......

ng update @angular/compiler-cli --force
ng update @angular/cli --force
npm audit fix
npm start

【讨论】：