windows phone 8 emulator - Deploying universal application results in "package could not be registered"

Question

We recently upgraded to the new Visual Studio and subsequently Windows Phone 8.1 preview. However when trying to deploy to the device or Windows Phone emulators(any of them), we get this error(0x80073CF6).

My phone is already developer unlocked. We have been successful in deploying it and running the application once, but now for some undetermined reason, it has stopped allowing us to do this.

I am willing to provide any more information if I can.

Answer 1

May be you are missing icon image in your manifest file. Please look at this.