Unity hang during Postprocessing player on Unity 5.0

I just upgraded my Unity from 4 to 5 and I’m facing this issue whenever I’m trying to build for iOS.
It will takes forever to do the postprocessing player. I’m not sure what causing this. Does anyone encounter this before?

Currently I have only 1 plugin included in my project which is Facebook SDK for Unity.

PS: I tried Unity 5.0.1 and Unity 5.0.2. Both are giving me same issue

Same problem with Android device, but it was plugged during the build. Works fine when I unplug it and restart the build.

This is an old post, I have upgraded since and have managed to get my build working. Thanks though

Same problem with iOS device build.

Assets/Texture/IconImage1
Assets/Texture/IconImage2
Assets/Texture/IconImage3

I change it to

Assets/Resources/IconImage1
Assets/Resources/IconImage2
Assets/Resources/IconImage3

Works fine when I change it and restart the build.