title: How to solve npm install throwing fsevents warning on non-MAC OS?
body: <p>Following warning is being thrown on <code>npm install</code> command -</p>
  
  <pre><code>npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.1.2 (node_modules\rea
  ct-scripts\node_modules\fsevents):
  npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@
  1.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"}
  )
  npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.0.0 (node_modules\ch
  okidar\node_modules\fsevents):
  npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@
  1.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"}
  )
  </code></pre>
  
  <p>The warning is apparently causing our Jenkins Job to mark failed, so we are just trying to get rid of the same. </p>
  
  <p>I already checked this <a href="https://stackoverflow.com/a/42938398/351903">https://stackoverflow.com/a/42938398/351903</a>
  But, unlike what is mentioned there, I do not have any /node_modules/fserrors in my setup. Also, my package.json does not contain fserrors. Following is my package.json - </p>
  
  <pre><code>{
    "name": "mvc-panel",
    "version": "0.1.0",
    "private": true,
    "dependencies": {
      "bootstrap": "^3.3.7",
      "jquery": "^3.2.1",
      "material-ui": "^0.18.3",
      "qs": "^6.4.0",
      "react": "^15.5.4",
      "react-alert": "^2.1.2",
      "react-bootstrap-table": "^3.4.1",
      "react-dom": "^15.5.4",
      "react-loader": "^2.4.2",
      "react-router-dom": "^4.1.1",
      "react-tap-event-plugin": "^2.0.1",
      "serve": "^6.0.0"
    },
    "devDependencies": {
      "datatables.net": "^1.10.15",
      "jquery": "^3.2.1",
      "react-scripts": "^1.0.7"
    },
    "scripts": {
      "start": "react-scripts start",
      "build": "react-scripts build",
      "test": "react-scripts test --env=jsdom",
      "eject": "react-scripts eject"
    }
  }
  </code></pre>
  
  <p>I can see fsevents in the package.json of react-scripts (which is defined under devDependencies of my package.json) in <code>node_modules\react-scripts\package.json</code> - </p>
  
  <pre><code>{
    "_args": [
      [
        {
          "raw": "react-scripts@^1.0.7",
          "scope": null,
          "escapedName": "react-scripts",
          "name": "react-scripts",
          "rawSpec": "^1.0.7",
          "spec": "&gt;=1.0.7 &lt;2.0.0",
          "type": "range"
        },
        "D:\\Sandeepan\\Payu MVC\\backend codebase\\MVC2.0\\panel\\mvc-panel"
      ]
    ],
    "_from": "react-scripts@&gt;=1.0.7 &lt;2.0.0",
    "_id": "react-scripts@1.0.14",
    "_inCache": true,
    "_location": "/react-scripts",
    "_nodeVersion": "8.5.0",
    "_npmOperationalInternal": {
      "host": "s3://npm-registry-packages",
      "tmp": "tmp/react-scripts-1.0.14.tgz_1506471610836_0.5613740666303784"
    },
    "_npmUser": {
      "name": "timer",
      "email": "timer150@gmail.com"
    },
    "_npmVersion": "5.3.0",
    "_phantomChildren": {
      "asap": "2.0.6",
      "escape-string-regexp": "1.0.5",
      "graceful-fs": "4.1.11",
      "has-ansi": "2.0.0",
      "universalify": "0.1.1"
    },
    "_requested": {
      "raw": "react-scripts@^1.0.7",
      "scope": null,
      "escapedName": "react-scripts",
      "name": "react-scripts",
      "rawSpec": "^1.0.7",
      "spec": "&gt;=1.0.7 &lt;2.0.0",
      "type": "range"
    },
    "_requiredBy": [
      "#DEV:/"
    ],
    "_resolved": "https://registry.npmjs.org/react-scripts/-/react-scripts-1.0.14.tgz",
    "_shasum": "70fe76c9beb67b136b953e875bdfe4ad78d410d1",
    "_shrinkwrap": null,
    "_spec": "react-scripts@^1.0.7",
    "_where": "D:\\Sandeepan\\Payu MVC\\backend codebase\\MVC2.0\\panel\\mvc-panel",
    "bin": {
      "react-scripts": "./bin/react-scripts.js"
    },
    "bugs": {
      "url": "https://github.com/facebookincubator/create-react-app/issues"
    },
    "dependencies": {
      "autoprefixer": "7.1.2",
      "babel-core": "6.25.0",
      "babel-eslint": "7.2.3",
      "babel-jest": "20.0.3",
      "babel-loader": "7.1.1",
      "babel-preset-react-app": "^3.0.3",
      "babel-runtime": "6.26.0",
      "case-sensitive-paths-webpack-plugin": "2.1.1",
      "chalk": "1.1.3",
      "css-loader": "0.28.4",
      "dotenv": "4.0.0",
      "eslint": "4.4.1",
      "eslint-config-react-app": "^2.0.1",
      "eslint-loader": "1.9.0",
      "eslint-plugin-flowtype": "2.35.0",
      "eslint-plugin-import": "2.7.0",
      "eslint-plugin-jsx-a11y": "5.1.1",
      "eslint-plugin-react": "7.1.0",
      "extract-text-webpack-plugin": "3.0.0",
      "file-loader": "0.11.2",
      "fs-extra": "3.0.1",
      "fsevents": "1.1.2",
      "html-webpack-plugin": "2.29.0",
      "jest": "20.0.4",
      "object-assign": "4.1.1",
      "postcss-flexbugs-fixes": "3.2.0",
      "postcss-loader": "2.0.6",
      "promise": "8.0.1",
      "react-dev-utils": "^4.1.0",
      "style-loader": "0.18.2",
      "sw-precache-webpack-plugin": "0.11.4",
      "url-loader": "0.5.9",
      "webpack": "3.5.1",
      "webpack-dev-server": "2.8.2",
      "webpack-manifest-plugin": "1.2.1",
      "whatwg-fetch": "2.0.3"
    },
    "description": "Configuration and scripts for Create React App.",
    "devDependencies": {
      "react": "^15.5.4",
      "react-dom": "^15.5.4"
    },
    "directories": {},
    "dist": {
      "integrity": "sha512-+p0q2N2WW7L4WW6uObqN7fYwSQZ9fBI0StpMYl1Ukoz/lCbemf+yW6b8refyhTsGy62GAqxlpyEfVcTE3hJAxg==",
      "shasum": "70fe76c9beb67b136b953e875bdfe4ad78d410d1",
      "tarball": "https://registry.npmjs.org/react-scripts/-/react-scripts-1.0.14.tgz"
    },
    "engines": {
      "node": "&gt;=6"
    },
    "files": [
      "bin",
      "config",
      "scripts",
      "template",
      "utils"
    ],
    "homepage": "https://github.com/facebookincubator/create-react-app#readme",
    "license": "MIT",
    "maintainers": [
      {
        "name": "timer",
        "email": "timer150@gmail.com"
      },
      {
        "name": "fb",
        "email": "opensource+npm@fb.com"
      },
      {
        "name": "gaearon",
        "email": "dan.abramov@gmail.com"
      }
    ],
    "name": "react-scripts",
    "optionalDependencies": {
      "fsevents": "1.1.2"
    },
    "readme": "ERROR: No README data found!",
    "repository": {
      "type": "git",
      "url": "git+https://github.com/facebookincubator/create-react-app.git"
    },
    "version": "1.0.14"
  }
  </code></pre>
  
  <p><strong>Update</strong></p>
  
  <p>I tried running the npm install command and getting the exit status of the earlier command. It showed 0 meaning success, despite the warnings. So, it does not look like Jenkins job should be stuck due to this. However, we are still trying to find a way to get rid of this warning because it is not relevant to our OS.</p>