multipleDefine console error when adding custom dojo editor control

I've added a custom UTC Time picker control to my CMS 12 solution. This was previously working in a CMS 11 website. When loading the CMS editor i get the following "multipleDefine" errors in the console:

I've added the js files to my wwwroot here:

And i've added a module.config to the root of my project

The js files are downloading from this client resources folder. 

TimePickerUtc.js

define(['dojo/_base/lang','dijit/_TimePicker','dojo/_base/array','dojo/date', // date.compare'dojo/date/locale', // locale.format'dojo/date/stamp', // stamp.fromISOString stamp.toISOString'dojo/_base/declare', // declare'dojo/dom-class', // domClass.add domClass.contains domClass.toggle'dojo/dom-construct' // domConstruct.create
	],
	function(lang, _TimePicker, array, dojoDate, locale, stamp, declare, domClass, domConstruct) {
		return declare('Epik/Editors/TimePickerUtc', [_TimePicker],
			{
				// summary:
				//      Patch TimePicker to display UTC time
				_createOption: function(/*Number*/ index) {
					// summary:
					//		Patch the method to create time option in UTC
					var date = new Date(this._refDate);
					var incrementDate = this._clickableIncrementDate;
					date.setTime(date.getTime() +
						incrementDate.getHours() * index * 3600000 +
						incrementDate.getMinutes() * index * 60000 +
						incrementDate.getSeconds() * index * 1000);
					/*------PATCH START------*/
					if (this.constraints.selector === 'time') {
						date.setUTCFullYear(1970, 0, 1); // make sure each time is for the same UTC date
					}
					// show UTC time on the options
					var utcOffsetDate = new Date(date.getTime() + date.getTimezoneOffset() * 60 * 1000);
					var dateString = locale.format(utcOffsetDate, this.constraints);
					/*------PATCH END------*/
					if (this.filterString && dateString.toLowerCase().indexOf(this.filterString) !== 0) {
						// Doesn't match the filter - return null
						return null;
					}
					var div = this.ownerDocument.createElement('div');
					div.className = this.baseClass + 'Item';
					div.date = date;
					div.idx = index;
					domConstruct.create('div',
						{"class": this.baseClass + 'ItemInner',
							innerHTML: dateString
						},
						div);
					if (index % this._visibleIncrement < 1 && index % this._visibleIncrement > -1) {
						domClass.add(div, this.baseClass + 'Marker');
					} else if (!(index % this._clickableIncrement)) {
						domClass.add(div, this.baseClass + 'Tick');
					}
					//if (this.isDisabledate(date)) {
					//	// set disabled
					//	domClass.add(div, this.baseClass + 'ItemDisabled');
					//}
					if (this.value && !dojoDate.compare(this.value, date, this.constraints.selector)) {
						div.selected = true;
						domClass.add(div, this.baseClass + 'ItemSelected');
						if (domClass.contains(div, this.baseClass + 'Marker')) {
							domClass.add(div, this.baseClass + 'MarkerSelected');
						} else {
							domClass.add(div, this.baseClass + 'TickSelected');
						}
						// Initially highlight the current value.   User can change highlight by up/down arrow keys
						// or mouse movement.
						this._highlightOption(div, true);
					}
					return div;
				}
			});
	});

TimeTextBoxUtc.js

define(['dojo/_base/declare','dojo/date/locale', // locale.format'dojo/date/stamp', // stamp.fromISOString stamp.toISOString'dijit/form/TimeTextBox','./TimePickerUtc'
	],
	function(declare, locale, stamp, TimeTextBox, TimePickerUtc) {
		return declare('Epik/Editors/TimeTextBoxUtc', [TimeTextBox],
			{
				// summary:
				//      TimeTextBox in UTC time
				// with patched time picker
				popupClass: TimePickerUtc,
				parse: function () {
					// summary:
					//		Override the method to parse the string as UTC time
					// the value is parsed as local time
					var value = this.inherited(arguments);
					// calculate UTC time
					if (value instanceof Date) {
						value = new Date(value.getTime() - value.getTimezoneOffset() * 60 * 1000);
					}
					return value;
				},
				_setValueAttr: function (value, priorityChange, formattedValue) {
					// summary:
					//		Override the method to set UTC time. Note: value can be a JavaScript Date literal or a string to be parsed.
					if (typeof value === 'string') {
						value = stamp.fromISOString(value);
					}
					if (value instanceof Date && !this._isInvalidDate(value)) {
						// set UTC time string as formattedValue, which is shown in the textBox
						var utcOffsetDate = new Date(value.getTime() + value.getTimezoneOffset() * 60 * 1000);
						arguments[2] = locale.format(utcOffsetDate, this.constraints);
						arguments.length = 3;
					}
					this.inherited(arguments);
				}
			});
	});

Also seeing this console error afterwards:

What am i missing in the dojo setup?