Appcelerator iOS Module with OpenCV - OpenCV's camera won't open - objective-c

Question

So, I am developing an Appcelerator iOS Module which uses OpenCV to do some image processing with the camera.
The thing is, the camera won't open at all. I read the official OpenCV example, followed the steps (of course, had to adapt things to be used as an Appc Module), also followed the iOSModuleQuickStart from the Appcelerator Wiki. I thought I did it right, except that it just doesn't work.
This is my .h View class from the Module:
#import "TiUIView.h"
#import <Foundation/Foundation.h>
#import <opencv2/videoio/cap_ios.h>
#import <UIKit/UIKit.h>
using namespace cv;
#interface ComIosopencvmoduleTestView : TiUIView<CvPhotoCameraDelegate>
{
UIImageView *imageView;
CvPhotoCamera *photoCamera;
}
#property (nonatomic, retain) CvPhotoCamera* photoCamera;
#end
This is the implementation of it (.mm):
#import "ComIosopencvmoduleTestView.h"
#import "TiUtils.h"
// some other imports....
#implementation ComIosopencvmoduleTestView
#synthesize photoCamera;
#pragma mark - UI Actions
- (void)initializeState
{
self.photoCamera = [[CvPhotoCamera alloc] initWithParentView:imageView];
self.photoCamera.delegate = self;
self.photoCamera.defaultAVCaptureDevicePosition = AVCaptureDevicePositionBack;
self.photoCamera.defaultAVCaptureSessionPreset = AVCaptureSessionPresetPhoto;
self.photoCamera.defaultAVCaptureSessionPreset = AVCaptureSessionPreset352x288;
self.photoCamera.defaultAVCaptureVideoOrientation = AVCaptureVideoOrientationPortrait;
[self.photoCamera start];
// The instantiation and the call to start method, should do the trick, but it doesn't
}
#end
And, this is how I call it on JS, from Appcelerator Studio:
var VWindow = Ti.UI.createWindow({});
var VView = VItire.createView({});
var VItire = require('com.iosopencvmodule.test');
VWindow.add(VView);
VWindow.open();
This code, according to what I understood from both Tutorials, OpenCV and Appcelerator, should be enough to open the Camera as the App is launched.
Please, what could possibly be wrong? I am going mad with this. Thanks in advance!
Please help!