ID:11985 File conversion is not allowed for external active serial clock source when CvP and design security features are enabled.

CAUSE: You attempted to convert a file with the Configuration via Protocol (CvP) and design security feature enabled for Stratix V, Arria V, or Cyclone V device. The active serial clock source is not allowed.

ACTION: Use an active serial clock source with 12.5MHz or less when converting a device file with the CvP and design security feature enabled.