PCB检测错误疑问

PCB里DRC检测的时候出现下面的东东请问是什么意思：Processing Rule : Broken-Net Constraint ( (On the board ) )
Violation Net VCC5V is broken into 2 sub-nets. Routed To 98.75%
Subnet : D904-2 JN300-1 JN300-2 JN202-4 JN1-1 D906-2 D908-2 D910-2 D902-2 D905-2
C201-1 D909-2 D907-2 C901-1 D911-2 C202-2 D913-1 U301-3 C903-1 D903-2 D901-2
C902-1 R918-2 C200-1 C304-1 R903-2 R104-2 R102-2 U303-3 R103-2 C300-1 U102-8
C127-2 U202-8 R518-2 D521-2 C303-1 R211-1 D522-2 R513-2 U203-8 C205-2 R210-2
R209-1 D520-2 D518-2 D516-2 D514-2 D512-2 D519-2 D517-2 D515-2 D513-2 D523-2
R206-2 R208-1 C2032-1 R207-1 C309-1 RN201-7 RN201-5 RN201-3 RN201-1 RN200-1 RN200-3
RN200-5 RN200-7 R201-2 U300-3 C301-1 C204-2 R514-1 R205-2 U201-44 C306-1 C302-1
C310-1 U302-3 JN201-3 R101-2
Subnet : C312-1
Violation Net DGND
Warning - net contains unplated pads
Rule Violations :2
在此先谢谢各位大哥大姐的帮忙!