ID:19991 The atom port definition has changed for "<atom_name>" (id:<atom_id>) in the current version of Quartus Prime software. The port "<port_name>" is in use and cannot be removed from the design. The database cannot be restored to this version of Quartus Prime.

CAUSE: A port saved in the atom netlist from an earlier version of Quartus Prime software has been removed in the current version. The atom netlist is not valid and cannot be restored to the design.

ACTION: Recompile the design with the most recent version of the Quartus Prime software.