各位老师好，我画了一个四层板，其中SMA的GND的4个脚，总是显示Un-Routed Net Constraint。请问这该如何解决，难道不应该是pad自动连接到GND层了吗

PCB 进行design rule check 时报错，提示Un-Routed Net Constraint: Net V_VS Between Track (33.223mm,-13.425mm)(34.781mm,-13.425mm) on Bottom Layer And Pad R85-2(

PCB 进行design rule check 时报错，提示Un-Routed Net Constraint: Net V_VS Between Track (33.223mm,-13.425mm)(34.781mm,-13.425mm) on Bottom Layer And Pad R85-2(

课程主要面向的是电路设计初学者，内容均从实际应用出发，同时结合仿真软件验证各种理论推理。