请教层次图ERC出错问题

请教各位大侠:对层次图ERC后出现这样错误
#1 Error   Duplicate Sheet Numbers 0 S1240.prj And CPU.SCH
#2 Error   Duplicate Sheet Numbers 0 S1240.prj And INPUT.SCH
#3 Error   Duplicate Sheet Numbers 0 S1240.prj And OUTPUT.SCH
#4 Error   Duplicate Sheet Numbers 0 S1240.prj And POWER.SCH
#5 Error   Duplicate Sheet Numbers 0 CPU.SCH And INPUT.SCH
#6 Error   Duplicate Sheet Numbers 0 CPU.SCH And OUTPUT.SCH
#7 Error   Duplicate Sheet Numbers 0 CPU.SCH And POWER.SCH
#8 Error   Duplicate Sheet Numbers 0 INPUT.SCH And OUTPUT.SCH
#9 Error   Duplicate Sheet Numbers 0 INPUT.SCH And POWER.SCH
#10 Error   Duplicate Sheet Numbers 0 OUTPUT.SCH And POWER.SCH
请问是怎么回事?

给你的图分别加上序号

顶帖排序