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[nodejs] When installing browser-sync, I encountered such an error message

$ npm install --save-dev browser-sync
npm WARN deprecated node-uuid@1.4.8: Use uuid module instead
BrowsersyncExample@1.0.0 E:\wamp\www\BrowsersyncExample
`-- browser-sync@2.18.8

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.0.0 (node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.1: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN BrowsersyncExample@1.0.0 No description
npm WARN BrowsersyncExample@1.0.0 No repository field.
npm WARN The package browser-sync is included as both a dev and production dependency.

If you ignore these error messages, run:

$ browser-sync start --server --files "css/*.css"
bash: browser-sync: command not found

This prompt will appear. .

Do you have any good solutions?