ID:13544 Verilog HDL error at <location>: <string> is a SystemVerilog feature
CAUSE: You used the specified SystemVerilog feature in a Verilog Design File (.v); however, you did not enable SystemVerilog extensions for this file by specifying SystemVerilog_2005 as its Verilog Input Version .
ACTION: Set the Verilog Input Version for the file to SystemVerilog_2005 or save the file as a SystemVerilog Design File (.sv).