NPM WARN Unsupported platform for fsevents@1.1.3 ?

Versions

<!--
Output from: `ng v1.5.2`.
 output from: `node v8.9.1` and  `npm v5.5.1`.
  Windows 7
-->

Repro steps

• Step 1 : npm install -g @angular/cli
• Step 2 : NPM WARN Unsupported platform for fsevents@1.1.3
• Step 3

Observed behavior

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Desired behavior

Mention any other details that might be useful (optional)

[danielsogl]

You can ignore this warning. fs-events is required on macOS

[kirhhof]

adding this to package.json solved the problem for me

 "optionalDependencies": {
    "fsevents": "*"
  }