TypeError: Object.observe is not a function

[dev-rozaq]

TypeError: Object.observe is not a function
at d:\Project\webofthings.js-master\plugins\corePlugin.js:68:12
at arrayEach (d:\Project\webofthings.js-master\node_modules\lodash\internal\arrayEach.js:15:9)
at Object. (d:\Project\webofthings.js-master\node_modules\lodash\internal\createForEach.js:15:9)
at exports.LedsPlugin.CorePlugin.observeActions (d:\Project\webofthings.js-master\plugins\corePlugin.js:67:5)
at exports.LedsPlugin.CorePlugin.start (d:\Project\webofthings.js-master\plugins\corePlugin.js:30:26)
at initPlugins (d:\Project\webofthings.js-master\wot-server.js:50:14)
at createServer (d:\Project\webofthings.js-master\wot-server.js:12:3)
at Object. (d:\Project\webofthings.js-master\wot.js:2:1)
at Module._compile (module.js:569:30)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:503:32)
at tryModuleLoad (module.js:466:12)
at Function.Module._load (module.js:458:3)
at Function.Module.runMain (module.js:605:10)
at startup (bootstrap_node.js:158:16)
at bootstrap_node.js:575:3
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! webofthings@0.1.0 start: node wot.js
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the webofthings@0.1.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

[domguinard]

Duplicate of #3 the current fix is to make sure you use version 4.X of Node.