iOS - Build Freezes When I Build To Device but Not in Simulator

I'm curious if someone can help me figure out what is going on...

I have an app that works fine in the sim开发者_如何学Culator with no warnings or errors but when I try to even build with the device selected it appears to freeze. I've left it building for over 20minutes with no luck.

The application uses a large number of animated PNG sequence and a few videos but that didn't appear to be a problem until today.

Any insight would be appreciated...

What has changed in your environment since yesterday? Can you back off the number of images to say 3 small ones, and one short video, and see if it builds then? Then add them back in a few at a time to see where it's breaking. Divide an conquer.

Turned out to be an odd problem with XCode compressing the PNGs in my project.

Turned off the PNG compression and it complied in no time.