unregisterDevice function not working with iOS 10 / XCode 8

[jmereaux]

Hi,

When trying to use the unregisterDevice function of the CDVMFPPush swift class, I get the following error:
fatal error: unexpectedly found nil while unwrapping an Optional value

The app crashes at the following line:
self.push.unregisterDevice({ (response:IMFResponse!, error:NSError!) -> Void in

Seems like self.push is nil.

Could it be a side effect due to the migration to iOS 10 / XCode 8?
Could you please help me to sort this out.

Thanks!

[AnanthaKrish]

Fixed