Getting error on MAKE IT MODULAR

[krimple]

I'm on OS X El Capitan - and getting an interesting behavior and wondering if it's me or the scripts.

The output is:
[Error: testing] ERROR: There was a problem printing the solution files: testing

when I execute the verify against my main node source file. It works, and calling it with run brings back the correct output, even with verify as well, but this error occurs at the end:

Your submission results compared to the expected:

                 ACTUAL                                 EXPECTED                
────────────────────────────────────────────────────────────────────────────────

   "CHANGELOG.md"                      ==    "CHANGELOG.md"                     
   "LICENCE.md"                        ==    "LICENCE.md"                       
   "README.md"                         ==    "README.md"                        
   ""                                  ==    ""                                 

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

[Error: testing]
ERROR: There was a problem printing the solution files: testing

node version: 4.2.3

Sources

file-list-runner.js

var fileList = require('./file-list');

fileList(process.argv[2], process.argv[3],
         function(err, files) {
             if (err) {
                 console.log(err);
             } else {
                 files.forEach(function (f) { console.log(f); });
             }
         });

file-list.js

var fs = require('fs');
var path = require('path');
function listFiles(directory, extension, callback) {
    try {
        fs.readdir(directory, function(err, files) {
            if (err) {
                console.log(err);
                return;
            }
            var filteredList = files.filter(function(file) {
                return path.extname(file) ===  '.' + extension;
            });

            if (filteredList) {
                callback(null, filteredList);
            }
        });
    } catch (error) {
        callback(error);
    }
}

module.exports = listFiles;

I execute with:

learnyounode verify file-list-runner.js

[thetwosents]

Ditto

https://www.dropbox.com/s/25gicekhas8z0iy/Screenshot%202016-01-15%2018.28.00.png?dl=0

[robbennet]

+1 ... going to take a look now

[MarkCLaFay]

+1 same for me as well

[agauniyal]

same error as @thetwosents and the code works with learnyounode run program.js.

program.js contains:

var mymodule = require('./mymodule');

mymodule(process.argv[2], process.argv[3],function (err,file) {
    if(err) { throw err; }
    console.log(file);
});

mymodule.js contains

var fs = require('fs');
var path = require('path');

module.exports = function (dir,ext,callback) {
    fs.readdir(dir, function (err, files) {
        if (err) { return callback(err); }

        var reqExt = '.' + ext;
        files.forEach(function (file) {
            if (path.extname(file) === reqExt){
                callback(null,file);
            }
        });
    });
};

[jmalk]

+1, I am also seeing this error output.

I was able to solve it by following: https://github.com/workshopper/learnyounode/issues/395

YMMV.