在仿真時出現如下問題：

ERROR -- Model MUR2510 used by D_D1 is undefined
ERROR -- Model MUR2510 used by D_D2 is undefined
ERROR -- Model MUR2510 used by D_D3 is undefined
ERROR -- Model MUR2510 used by D_D4 is undefined
ERROR -- Model IRF250 used by M_M5 is undefined
ERROR -- Model IRF250 used by M_M6 is undefined
ERROR -- Model IRF250 used by M_M7 is undefined
ERROR -- Model IRF250 used by M_M8 is undefined

望高人不吝賜教，謝謝！