Not all pins could be reached on the net. Check connections

nobody_a

Not analyzed:

Class    Document    Source    Message    Time    Date    No.

[Warning]    PCB1-20170524.PcbDoc    Signal Integrity    CLK1: Not all pins could be reached on the net.  Check connections.    10:04:09 AM    5/25/2017    335
$ z/ G. L+ n* ]- o! W4 E* F, P
; `8 {2 ^4 j. O5 x2 A

nobody_a

这几个红色区域是什么意思？ Not analyzed??