Issue with ES6 on 'npm start'

[Jeff Voss]

It seems that there is a transpilation error in the controllers while running npm start, here is a snapshot of the error:

/Users/jeffreyjones/Sites/node-express-mongoose-demo/app/controllers/users.js:8
const { wrap: async } = require('co');
^

SyntaxError: Unexpected token {
at exports.runInThisContext (vm.js:53:16)
at Module._compile (module.js:373:25)
at Object.Module._extensions..js (module.js:416:10)
at Module.load (module.js:343:32)
at Function.Module._load (module.js:300:12)
at Module.require (module.js:353:17)
at require (internal/module.js:12:17)
at Object. (/Users/jeffreyjones/Sites/node-express-mongoose-demo/config/routes.js:7:15)
at Module._compile (module.js:409:26)
at Object.Module._extensions..js (module.js:416:10)
at Module.load (module.js:343:32)
at Function.Module._load (module.js:300:12)
at Module.require (module.js:353:17)
at require (internal/module.js:12:17)
at Object. (/Users/jeffreyjones/Sites/node-express-mongoose-demo/server.js:40:1)
at Module._compile (module.js:409:26)
at Object.Module._extensions..js (module.js:416:10)
at Module.load (module.js:343:32)
at Function.Module._load (module.js:300:12)
at Function.Module.runMain (module.js:441:10)
at startup (node.js:139:18)
at node.js:968:3
[nodemon] app crashed - waiting for file changes before starting...

[Ze Chen]

check your node version.It should be NodeJs >= 6.x

[madhums]

@nick-ChenZe that's right. @iamwhitebox make sure to have node >= 6.x. That will solve the issue you are facing.

[Piyush]

@madhums Can you share some resource which explain what "const { wrap: async } = require('co');" statement is doing. I checked this https://github.com/tj/co repo but couldn't understand how it works. Also, can you share some more resources which let us understand the use of async, function pointers, etc in multiple controllers.