我用三個(gè)電感模擬變壓器，添加了耦合K_linear，設(shè)置了L1,L2,L3后，仿真，但有錯(cuò)誤。錯(cuò)誤如下

ERROR --  device L_3mH is undefined
ERROR --  device L_3mH is undefined
ERROR --  device L_28mH is undefined
ERROR --  device L_3mH is undefined
ERROR --  device L_3mH is undefined
ERROR --  device L_28mH is undefined

我怎么也不知道究竟是哪里出問(wèn)題了，那個(gè)耦合究竟應(yīng)該怎么設(shè)置啊