ID:176224 Constraint <name> contains no locations for registers

CAUSE: A register cannot be placed in the location specified by the constraint because the location does not contain a valid location for a register. This message is informational only, and is intended to help diagnose and resolve fitting problems when location constraints are a source of those problems.

ACTION: See prior messages for a description of the fitting problems. To resolve those problems, you may have to remove or relax the location constraints on the node, or modify or eliminate the indirect sources of location constraints on the node.