%Error: t/t_var_port2_bad.v:6: Input/output/inout declaration not found for port: 'portwithoin'
module t (portwithoin);
          ^~~~~~~~~~~
%Error: t/t_var_port2_bad.v:7: Input/output/inout does not appear in port list: 'portwithin'
   input portwithin;
         ^~~~~~~~~~
%Error: Exiting due to
