ID:228000 Can't back-annotate pin assignments because pin-out information for devices with preliminary support is subject to change

CAUSE: You tried to back-annotate pin assignments, but the selected device has preliminary support. Because pin-out information for devices with preliminary support is subject to change, the Quartus Prime software cannot back-annotate pin assignments for this device.

ACTION: No action is required. If you want to use this device, contact Intel for information on its availability. Otherwise, if you want to back-annotate pin assignments for your design, select a device for which pin-out information is available.