Angular `npm install save --bootstrap` 没有安装 bootstrap 模块

Angular `npm install save --bootstrap` doesn't install bootstrap module

我需要在新的 Angular 项目中安装 bootstrap 模块。

npm install save --bootstrap

Output is below and the bootstrap module is not installed in the node_modules.

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.1.3 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules\watchpack-chokidar2\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules\webpack-dev-server\node_modules\fsevents):npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

+ save@2.4.0
updated 1 package and audited 1467 packages in 5.145s

55 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities

The previous successful installation indicated at least 10+ packages should be added. But above output indicated just 1 package updated?

有人可以帮忙解决问题吗?

我是这样安装的:

npm install bootstrap jquery popper.js --save-dev

然后编辑 angular.json

"./node_modules/bootstrap/dist/css/bootstrap.min.css"

"./node_modules/bootstrap/dist/js/bootstrap.bundle.min.js"