You've done the following:
- Created a bootable Windows 8 installation USB drive created by the boot camp utility in Yosemite
But then during the Windows 8 install wizard, you select the partition you expect to be able install Windows 8 on and on the selected partition you've gotten the infamous error "Windows cannot be Installed on this disk. The selected disk is of the GPT partition style". You try to delete the partition and attempt to recreated it and format it and yet it still doesn't rid this error. Nothing you do works...and you're about to give up.
You've pulled your hair out a few times and you are now bald.
What do you do?
Boot up using the EFI boot partition first instead: