NCP1015反激开关电源multisim仿真错误

------ 正在为 设计1 - 2024年3月22日, 22:51:30 检查 SPICE 网表------
======= SPICE 网表检查完毕, 0 错误, 0 警告 =======
Warning: Analysis initial conditions are not set to User-Defined, but initial conditions are set on one or more devices inside U4. The circuit may not simulate as intended.