大佬教程收集整理的这篇文章主要介绍了为我的第一个 Angular 应用程序运行“ng serve”时出错，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。
消息和跟踪：
GeneraTing browser application bundles (phase: building)...(node:5312) UnhandledPromiseRejectionWarning: TypeError: messagePort was found in message but not Listed in transferList
at new Worker (internal/worker.Js:170:17)
at SassWorkerImplementation.createWorker (C:\Users\shail\iacademiaApp1\node_modules\@angular-devkit\build-angular\src\sass\sass-service.Js:96:24)
at SassWorkerImplementation.render (C:\Users\shail\iacademiaApp1\node_modules\@angular-devkit\build-angular\src\sass\sass-service.Js:62:40)
at Object.loader (C:\Users\shail\iacademiaApp1\node_modules\sass-loader\dist\index.Js:46:3)
(node:5312) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing insIDe of an async function without a catch block,or by rejecTing a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection,use the Cli flag `--unhandled-rejections=Strict` (see https://nodeJs.org/API/cli.HTML#cli_unhandled_rejections_modE). (rejection ID: 1)
(node:5312) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future,promise rejections that are not handled will terminate the Node.Js process with a non-zero exit code.
(node:5312) UnhandledPromiseRejectionWarning: TypeError: messagePort was found in message but not Listed in transferList
at new Worker (internal/worker.Js:170:17)
at SassWorkerImplementation.createWorker (C:\Users\shail\iacademiaApp1\node_modules\@angular-devkit\build-angular\src\sass\sass-service.Js:96:24)
at SassWorkerImplementation.render (C:\Users\shail\iacademiaApp1\node_modules\@angular-devkit\build-angular\src\sass\sass-service.Js:62:40)
at Object.loader (C:\Users\shail\iacademiaApp1\node_modules\sass-loader\dist\index.Js:46:3)
(node:5312) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing insIDe of an async function without a catch block,use the Cli flag `--unhandled-rejections=Strict` (see https://nodeJs.org/API/cli.HTML#cli_unhandled_rejections_modE). (rejection ID: 2)
/ GeneraTing browser application bundles (phase: building)...
最新版本的 Angular CLI (12.0.1) 不支持低于 12.20 版本的 Node。
update your version of Node to the latest stable version
仅当您由于某种原因完全无法更新 Node 版本时才这样做
将 node-sass 添加到您的项目 devDependencies，直到您能够更新您的节点版本。
npm i -save-dev node-sass
yarn add -D node-sass
您应该小心使用这种解决方法，因为 node-sass 很快就会被弃用。
,请试试这个：
ng 更新@angular/cli
npm 安装
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