PCBNavigator5.1在连接orcad原理图时，有2个part以上的器件都失败

PCBNavigator5.1在连接orcad原理图时，有2个part以上的器件都失败，提示错误：

Merging properties in D:\orcad_powerpcb\AJ_V3\SCH\controller(v3) parts.exp.
Object Info: The Object Part Reference = "U85B" is a sub-package. Skipping...
Object Info: The Object Part Reference = "U85A" is a sub-package. Skipping...
Object Info: The Object Part Reference = "U73E" is a sub-package. Skipping...
Object Info: The Object Part Reference = "U72B" is a sub-package. Skipping...
Object Info: The Object Part Reference = "U73B" is a sub-package. Skipping...
Object Info: The Object Part Reference = "U73D" is a sub-package. Skipping...

谁知道怎么回事?