update pcb

&nbsp;&nbsp;在做完原理图以后生成PCB的时候提示节点找不到,可那些节点我都没用到,这是怎么回事啊?<br />&nbsp;&nbsp;具体错误见下:<br />ERRORS:&nbsp;6&nbsp;macros&nbsp;can&nbsp;not&nbsp;be&nbsp;executed:<br />-------------------------------------------------------------------------<br />Macro&nbsp;1:&nbsp;New&nbsp;Node<br />Add&nbsp;node&nbsp;D1-1&nbsp;to&nbsp;net&nbsp;AREFN<br />Error:&nbsp;Node&nbsp;not&nbsp;found<br /><br />Macro&nbsp;2:&nbsp;New&nbsp;Node<br />Add&nbsp;node&nbsp;D2-2&nbsp;to&nbsp;net&nbsp;AREFN<br />Error:&nbsp;Node&nbsp;not&nbsp;found<br /><br />Macro&nbsp;3:&nbsp;New&nbsp;Node<br />Add&nbsp;node&nbsp;-A&nbsp;to&nbsp;net&nbsp;NetR18_1<br />Error:&nbsp;Node&nbsp;not&nbsp;found<br /><br />Macro&nbsp;4:&nbsp;New&nbsp;Node<br />Add&nbsp;node&nbsp;D1-2&nbsp;to&nbsp;net&nbsp;VSS<br />Error:&nbsp;Node&nbsp;not&nbsp;found<br /><br />Macro&nbsp;5:&nbsp;New&nbsp;Node<br />Add&nbsp;node&nbsp;D2-1&nbsp;to&nbsp;net&nbsp;VSS<br />Error:&nbsp;Node&nbsp;not&nbsp;found<br /><br />Macro&nbsp;6:&nbsp;New&nbsp;Node<br />Add&nbsp;node&nbsp;-K&nbsp;to&nbsp;net&nbsp;VSS<br />Error:&nbsp;Node&nbsp;not&nbsp;found