First service always coming up as unknown - angularjs

Question

Whichever factory is listed first is always getting this error:
Uncaught Error: [$injector:unpr] Unknown provider: SocketProvider <- Socket
at ionic.bundle.js:13380
or
Error: [$injector:unpr] Unknown provider: CommandsProvider <- Commands <- Command
at ionic.bundle.js:25642
If it's put in one file like the starters are, they work fine, but that organization is horrible and this is the way I do it with regular Angular apps.
INDEX:
<script src="app.js"></script>
<script src="services/socket.service.js"></script>
<script src="services/commands.service.js"></script>
<script src="controllers/connect.controller.js"></script>
<script src="controllers/command.controller.js"></script>
Service structure:
socket.service.js
(function(){
'use strict';
angular.module('tacoCorp.services', [])
.factory('Socket', Socket);
Socket.$inject = ['socketFactory'];
function Socket(socketFactory) {
// do factory stuff
}
}());
commands.service.js
(function(){
'use strict';
angular.module('tacoCorp.services', [])
.factory('Commands', Commands);
Commands.$inject = [];
function Commands() {
// more factory stuff
}
}());
Controller structure:
(function (){
'use strict';
angular.module('tacoCorp.controllers')
.controller('Command', Command);
Command.$inject = ['$scope', 'Socket', 'Commands'];
function Command($scope, Socket, Commands) {
// controller jamz
}
})();

Answer 1

You actually define module 'tacaCorp.services' two times thats why first module is overwritten...
You should write module defination in another file then get it at services js files...
(function(){
'use strict';
angular.module('tacoCorp.services', []);
}());
as you see we define module with no dependency. Next get module and add your services on it.
(function(){
'use strict';
angular.module('tacoCorp.services')
.factory('Commands', Commands);
Commands.$inject = [];
function Commands() {
// more factory stuff
}
}());
as you see for getting module you only have to call angular.module('tacoCorp.services') like that if you add second argument then you set it instead of get it, this is your mistake actually.