1%Error-PINNOTFOUND: t/t_lint_pinnotfound_bad.v:12:13: Pin not found: 'x'
2   12 | b b_inst1 (.x(1'b0));
3      |             ^
4                    ... For error description see https://verilator.org/warn/PINNOTFOUND?v=latest
5%Error-PINNOTFOUND: t/t_lint_pinnotfound_bad.v:13:6: Parameter pin not found: 'PX'
6   13 | b #(.PX(1'b0)) b_inst2 ();
7      |      ^~
8%Error: Exiting due to
9