'Error: {error.mod.not_function}' on first level lesson

[emeraldjava]

Hi,

Attempting the first lesson and i have this module defined as '01-level-module.js'

module.exports.someFunction = function someFunction(x,y,callback) {
  callback(null,"ALL YOUR "+x+" ARE BELONG TO "+y);
}

and my client code in '01-level.js' is

var levelme = require("./01-level-module.js");

levelme.someFunction(process.argv[2],process.argv[3],function(err,result) {
	if(err) {
		return console.error(err);
	}
	console.log(result);
});

When i run "levelmeup verify 01-level.js" using node v6.10.1, i get this error

# LEVEL ME UP SCOTTY!

## ALL YOUR BASE (Exercise 1 of 12)

ALL YOUR verify ARE BELONG TO 01-level.js
 # FAIL Your solution to ALL YOUR BASE didn't pass. Try again!


    Error while running run, cause: 
    
    Error: The module doesn't return a function
        at createErrorTemplate (/usr/lib/node_modules/levelmeup/node_modules/exec-module/lib/createErrorTemplate.js:16:15)
        at Timeout._onTimeout (/usr/lib/node_modules/levelmeup/node_modules/exec-module/lib/execAsync.js:32:19)
        at ontimeout (timers.js:380:14)
        at tryOnTimeout (timers.js:244:5)
        at Timer.listOnTimeout (timers.js:214:5)

─────────────────────────────────────────────────────────────────────────────

The full error is

Could not run: Error while running run, cause: 

Error: {error.mod.not_function}
    at createErrorTemplate (/usr/lib/node_modules/levelmeup/node_modules/exec-module/lib/createErrorTemplate.js:16:15)
    at Timeout._onTimeout (/usr/lib/node_modules/levelmeup/node_modules/exec-module/lib/execAsync.js:32:19)
    at ontimeout (timers.js:380:14)
    at tryOnTimeout (timers.js:244:5)
    at Timer.listOnTimeout (timers.js:214:5)`

Can anybody suggest what I'm doing wrong?

[jblacker]

My hint to you is that you're returning a [named] function instead of just exporting a single function.

[martinheidegger]

Yes, this indeed means that the returned module is an object instead of a function. The translation string is written here: https://github.com/workshopper/levelmeup/blob/master/i18n/en.json#L29, maybe you know how to express this problem better? In any case, it should not render {error.mod.not_function} during run. That is a bug in workshopper-adventure 😒