ID:13919 VHDL attribute error at <location>: prefix for "<name>" attribute must denote a scalar type

CAUSE: In a VHDL Design File (.v) at the specified location, you used an attribute name with a prefix of non-scalar type. However, the attribute applies only to objects of scalar type.

ACTION: Make sure the prefix has a scalar type, for example, by checking the spelling of the prefix and the attribute.