I faced the same problem. If you have modified any system files (like build.prop) or removed/uninstalled any system apps, then it will error out with the "can't verify".
Just revert all changes you made, re-install and system apk u removed, and try again.
If I have helped you, hit the THANKS button!!
Current Devices : Sony Xperia Z2, Samsung Galaxy Note 2, Motorola X
Previous Devices : Samsung Galaxy Note, Xolo X900, Sony Xperia Arc, Samsung Galaxy Ace, Nokia N900, Nokia N82, Nokia N73, Motorola L6, Nokia 3300