ID:13723 VHDL Unsupported Feature error at <location>: cannot synthesize non-constant real object or value "<name>"

CAUSE: In a VHDL design file (.vhd) at the specified location, you either declared a non-constant object with a real type or converted a non-constant value into a real value. Integrated Synthesis does not support non-constant real values or objects.

ACTION: If the error message refers to an object, you must declare the object as a constant or declare it with a non-real type. If the error message refers to a value, you must change the value to a constant or remove the conversion.