ID:13743 VHDL Type Declaration error at <location>: unit used in secondary unit declaration must be a physical type

CAUSE: In a Type Declaration at the specified location in a VHDL Design File (.vhd), you used a unit in a secondary unit declaration. However, the unit is not a physical type. The unit in a secondary unit declaration must be a physical type.

ACTION: Change the unit in the secondary unit declaration to a physical type.