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Module not found unless I use a complete path when creating plugins in Hapi

I'm trying to familiarise myself with HapiJS and have been playing around with it this week, I've run into a problem with plugins and paths. I get an error regarding the path I specify when I require a file. I can't use " ./ " without getting an error. The only way to overcome the error is to use the full complete path.
Here's my code that works:
'use strict';
const indexController = require('/Users/mylaptop/docker-node/controllers/IndexController.js');
module.exports.plugin = {
name: 'myPlugin',
version: '1.0.0',
register: async function (server, options) {
// Create a route for example
server.route({
method:'GET',
path:'/test',
handler: function (request, h) {
return indexController.loadIndex(h);
}
});
}
};
However, if I try to require my IndexController file this way:
const indexController = require('./controllers/IndexController.js');
Then I get this error:
internal/modules/cjs/loader.js:583
throw err;
^
Error: Cannot find module '/Users/mylaptop/docker-node/Users/mylaptop/docker-node/controllers/IndexController.js'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15)
at Function.Module._load (internal/modules/cjs/loader.js:507:25)
at Module.require (internal/modules/cjs/loader.js:637:17)
at require (internal/modules/cjs/helpers.js:22:18)
at Object.<anonymous> (/Users/mylaptop/docker-node/config/routes/index.js:5:25)
at Module._compile (internal/modules/cjs/loader.js:689:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
at Module.load (internal/modules/cjs/loader.js:599:32)
at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
at Function.Module._load (internal/modules/cjs/loader.js:530:3)
It doesn't work inside of my plugin, yet outside of my plugin, requiring files this way works fine.
What could be the problem? How can I solve it?
Thanks in advance.

Problem solved with:
const indexController = require('../../controllers/IndexController.js');
My project root folder was 2 directories away, hence ../../ working for me.

Running a JavaScript program requiring jsfeat

I have downloaded jsfeat from here, and unzipped the downloaded file.
Inside the directory, I wrote the following:
require("./build/jsfeat.js");
var matrix = new jsfeat.matrix_t(2,2, jsfeat.U8_t | jsfeat.C1_t);
matrix.data[1] = 4;
console.log(matrix.data[1]);
I ran the program as follows:
$ node matrix.js
But, got the following error:
/Users/abc/Desktop/JavaScript/inspirit-jsfeat-59cc928/matrix.js:2
var matrix = new jsfeat.matrix_t(2,2, jsfeat.U8_t | jsfeat.C1_t);
^
ReferenceError: jsfeat is not defined
at Object.<anonymous> (/Users/abc/Desktop/JavaScript/inspirit-jsfeat-59cc928/matrix.js:2:19)
at Module._compile (module.js:425:26)
at Object.Module._extensions..js (module.js:432:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:311:12)
at Function.Module.runMain (module.js:457:10)
at startup (node.js:136:18)
at node.js:972:3
Why is that? How can I solve the issue?
Thanks.

You need to assign the imported module to a variable:
var jsfeat = require("./build/jsfeat.js");
If you prefer you could install the module with NPM to save downloading it manually:
$ npm install jsfeat
The module will be saved to ./node_modules/jsfeat. You can then require it with var jsfeat = require('jsfeat').

Unable to run appjs sample app using node.js

I am trying to run one of the sample projects using appjs which is present over here https://github.com/appjs/appjs/tree/master/examples. I am using the latest version of node.js (v4.1.0
) on Windows (64 bit machine)
When I try and run the example using the below command on Command Prompt
node --harmony index.js
I get an error as follows,
Error: AppJS requires Node is run with the --harmony command line flag
at Object.<anonymous> (F:\programs\appjs_examples\node_modules\appjs\lib\ind
ex.js:2:9)
at Module._compile (module.js:434:26)
at Object.Module._extensions..js (module.js:452:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Module.require (module.js:365:17)
at require (module.js:384:17)
at Object.<anonymous> (F:\programs\appjs_examples\octosocial\index.js:1:73)
at Module._compile (module.js:434:26)
at Object.Module._extensions..js (module.js:452:10)
I tried searching for this issue but I couldn't find a solution. Can anyone tell me how to use node.js with the harmony flag?
UPDATE
My index.js looks like this
var app = require('appjs'),
github = new (require('github'))({ version: '3.0.0' }),
KEY_F12 = process.platform === 'darwin' ? 63247 : 123;
app.serveFilesFrom(__dirname + '/assets');
var window = app.createWindow({
width: 460,
height: 640,
resizable: false,
disableSecurity: true,
icons: __dirname + '/assets/icons'
});
window.on('create', function(){
window.frame.show();
window.frame.center();
});
window.on('ready', function(){
var $ = window.$,
$username = $('input[name=username]'),
$password = $('input[name=password]'),
$info = $('#info-login'),
$label = $info.find('span'),
$buttons = $('input, button');
$(window).on('keydown', function(e){
if (e.keyCode === KEY_F12) {
window.frame.openDevTools();
}
});
$username.focus();
$('#login-form').submit(function(e){
e.preventDefault();
$info.removeClass('error').addClass('success');
$label.text('Logging in...');
$buttons.attr('disabled', true);
github.authenticate({
type: 'basic',
username: $username.val(),
password: $password.val()
});
github.user.get({}, function(err, result) {
if (err) {
$info.removeClass('success').addClass('error');
$label.text('Login Failed. Try Again.');
$buttons.removeAttr('disabled');
} else {
loggedIn(result);
}
});
});
function loggedIn(result){
$label.text('Logged in!');
$('#user-avatar').append('<img src="'+result.avatar_url+'" width="64" height="64">');
$('#user-name').text(result.name);
$('#login-section').hide();
$('#profile-section').show();
['Followers', 'Following'].forEach(function(type){
github.user['get'+type]({ user: result.login }, populate.bind(null, type.toLowerCase()));
});
}
Now with v0.12 of Node.js I get below error
F:\softwares\Node.js_v0.12\node_modules\appjs\lib\index.js:2
throw new Error ('AppJS requires Node is run with the --harmony command line
Error: AppJS requires Node is run with the --harmony command line flag
at Object.<anonymous> (F:\softwares\Node.js_v0.12\node_modules\appjs\lib\ind
ex.js:2:9)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Module.require (module.js:365:17)
at require (module.js:384:17)
at Object.<anonymous> (F:\softwares\Node.js_v0.12\index.js:1:73)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)

Just tested your code out locally with node v0.12.7 and v4.0.0. Looks like the node_modules/appjs/lib/index.js check makes sure that proxy is enabled no matter what.
By default the --harmony flag does not enable proxies. However you can use --harmony_proxies.
To help you understand what is happening:
Open node in your terminal, Then type Proxy. You will get 'Proxy is not defined'.
Now, open node --harmony in your terminal and do the same. You will get the same output.
Now, with node --harmony-proxies. Bam, you get an empty object.
You should be able to run this with v4.x.x however, you will still need the proxies flag for harmony.
When the merge happened with node.js and io.js for v4 they released a page of ES6 features that are shipped if you are using 4.x.x. https://nodejs.org/en/docs/es6/
https://github.com/appjs/appjs is deprecated btw, but once you pass the module's test of features, it will require 32bit ;)
Edit:
To properly run your app use the following:
node --harmony-proxies index.js
Here is a screenshot to show the expected output from step 3 above.

Unexpected token ILLEGAL while running node.js mocha test

I have searched all over but have not figured out what I am doing wrong. I am trying to set up mocha for testing node.js javascript application files. I have node installed and have successfully ran basic things on it to confirm it is working.
I installed mocha in my project file, and also have a Makefile and a file called "test" within my project file as well.
Here is the error my terminal(osx 10) is spitting out when I run the command "make test".
humbleMousesMBP:chapter02 humbleMouse$ make test
/Users/humbleMouse/chapter02/test/exchange.test.js:22

^
SyntaxError: Unexpected token ILLEGAL
at Module._compile (module.js:439:25)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at /Users/humbleMouse/chapter02/node_modules/mocha/bin/_mocha:313:27
at Array.forEach (native)
at load (/Users/humbleMouse/chapter02/node_modules/mocha/bin/_mocha:310:9)
at Object.<anonymous> (/Users/humbleMouse/chapter02/node_modules/mocha /bin/_mocha:301:1)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:906:3
make: *** [test] Error 8
This is the test I am trying to run:
'use strict';
var assert = require('assert')
, should = require('should');
var exchangeData = {};
suite('exchange', function() {
test('buy should add a BUY nockmarket order', function(done) {
exchangeData = exchange.buy(40, 100, exchangeData);
exchangeData.buys.volumes[40].should.eql(100);
done();
});
test('sell should add a SELL nockmarket order', function(done) {
exchangeData = exchange.sell(41, 200, exchangeData);
exchangeData.sells.volumes['41'].should.eql(200); //this is line 22
done();
});

test('sell should produce trades', function(done) {
exchangeData = exchange.sell(40, 75, exchangeData);
exchangeData.trades[0].price.should.eql(40);
exchangeData.trades[0].volume.should.eql(75);
exchangeData.buys.volumes[40].should.eql(25);
exchangeData.sells.volumes[41].should.eql(200);
done();
});
});

There are some invalid characters in your code, if you used proper text editor, you'd see them. The line numbering is a bit off, but this is clearly the cause.
Here's a screenshot from Sublime Text:
It's \uFFFC, more info here.
Just delete them (they can't be seen, so delete all from the semicolon to the next test().

Node.js "Cannot read property 'prototype' of undefined" error - Node.js, MongoDB and Angularjs book

I am working through Brad Dayley's Node.js, MongoDB and Angularjs book and I'm stuck on one of his exercises (Listing 4.4). I have a simple script emitterListener.js that is as follows the script is designed to makes checks on an account.
var events = require('events');
function Account() {
this.balance = 0;
events.EventEmitter.call(this);
this.deposit = function(amount) {
this.balance += amount;
this.emit('balanceChanged');
};
this.withdraw = function(amount) {
this.balance -= amount;
this.emit('balanceChanged');
};
}
Account.prototype._proto_ = events.EventEmitter.prototype;
function displayBalance() {
console.log("Account balance: $%d", this.balance);
}
function checkOverdraw() {
if (this.balance < 0) {
console.log("Account Overdrawn!!!!!");
}
}
function checkGoal(acc, goal) {
if (acc.balance > goal) {
console.log("Goal Achieved!!!!!");
}
}
var account = new Account();
account.on("balanceChanged", displayBalance);
account.on("balanceChanged", checkOverdraw);
account.on("balanceChanged", function() {
checkGoal(this, 1000);
});
account.deposit(220);
account.deposit(320);
account.deposit(600);
account.withdraw(1200);
When I run this I get the error.
TypeError: Object #<Account> has no method 'on'
at Object.<anonymous> (/Users/506132/web/emitterListener.js:35:9)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:906:3
From my limited understanding after researching I think this means that the "on" module is not being loaded. I found a solution that suggested something similar to adding this to line 1
var events = require('events').on;
which then results in the error.
TypeError: Cannot read property 'EventEmitter' of undefined
at Object.<anonymous> (/Users/506132/web/emitterListener.js:16:35)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:906:3
Following the logic from the first fix I tried implementing the same fix but with EventEmitter
var events = require('events').EventEmitter;
Hooray it looks like it worked.... or not......and now I get this error
TypeError: Cannot read property 'prototype' of undefined
at Object.<anonymous> (/Users/506132/web/emitterListener.js:17:48)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:906:3
I tried adding the below code thinking why not?
var events = require('events').prototype;
and it just brings me back to the same error from before
TypeError: Cannot read property 'EventEmitter' of undefined
at Object.<anonymous> (/Users/506132/web/emitterListener.js:16:35)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:906:3
What am I doing wrong here? How should I go about debugging this and where should I look? Thanks in advance for helping a newbie out.
Cheers.

process.EventEmitter is deprecated, use require('events') instead.
Search through all your reference files (should be in multiple files) for:
var EventEmitter = process.EventEmitter
An where ever it exists, change that line to this:
var EventEmitter = require('events')

I'll post it as an answer so this question won't get marked as unanswered.
You should change:
Account.prototype.__proto__ = events.EventEmitter.prototype;
to:
Account.prototype = Object.create(events.EventEmitter.prototype);

var EventEmitter = process.EventEmitter
is deprecated in high version of node, use var EventEmitter = require('events') instead

This compilation error because of versions conflicts of npm and node. I had the same issue in my project. I resolved after install the same compatible versions of npm and node as on another machine.
Check:
nmp -v
and
node -v.

All the confusion with the actual example is the first line of code.
var events = require('events');
After Node v6.1.0 this line of code will store EventEmmiter object inside events variable, so there is no need to access it explicitly later.
Solution is very simple, just change
events.EventEmitter.call(this);
to:
events.call(this)
And change
Account.prototype._proto_ = events.EventEmitter.prototype;
to:
Account.prototype._proto_ = events.prototype;

I had the same problem a few minutes ago, I decided to downgrade node to version 6.x, then it worked