ID:10839 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).