title: Error: Node Sass does not yet support your current environment: Linux 64-bit with Unsupported runtime (64)
body: <p>using ionic serve in ionic v3 project on ubuntu ... it's giving below error - </p>
  
  <blockquote>
    <p>Error: Node Sass does not yet support your current environment: Linux
    64-bit with Unsupported runtime (64) For more information on which
    environments are supported please see:
    <a href="https://github.com/sass/node-sass/releases/tag/v4.5.3" rel="noreferrer">https://github.com/sass/node-sass/releases/tag/v4.5.3</a>
        at module.exports (/usr/share/tour/node_modules/node-sass/lib/binding.js:13:13)
        at Object. (/usr/share/ionic/node_modules/node-sass/lib/index.js:14:35)
        at Module._compile (internal/modules/cjs/loader.js:678:30)
        at Object.Module._extensions..js (internal/modules/cjs/loader.js:689:10)
        at Module.load (internal/modules/cjs/loader.js:589:32)
        at tryModuleLoad (internal/modules/cjs/loader.js:528:12)
        at Function.Module._load (internal/modules/cjs/loader.js:520:3)
        at Module.require (internal/modules/cjs/loader.js:626:17)
        at require (internal/modules/cjs/helpers.js:20:18)
        at Object. (/usr/share/ionic/node_modules/@ionic/app-scripts/dist/core/bundle-components.js:6:16)</p>
  </blockquote>