ID:13413 Verilog HDL unsupported feature error at <location>: real variable data type values are not supported

CAUSE: In a Verilog Design File (.v) at the specified location, you declared a real variable data type. Although Verilog HDL supports real variable data types, this type is not supported in the Quartus Prime software.

ACTION: Change the data type of the variable to something other than real.