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小弟刚学protel,在原理图ERC检查中出现了如下错误,哪位能帮我解决一下?
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 ' ?+ z$ ]; A, l* q$ Werror Report For : Sheet1.Sch    7-Nov-2008   13:41:36
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 : F3 h* X5 x; W6 k#1 Warning   Unconnected Power Object On Net GND7 Z) x4 X0 k2 Q
 Sheet1.Sch GND" l$ g. M: Y/ S# p  V
 
 # N% i+ }$ o0 j' q( y6 r8 |5 Y" r/ b9 }#2 Warning   Unconnected Power Object On Net GND
 5 s7 Y$ R5 J2 \, g$ @( s    Sheet1.Sch GND
 4 P  W) r$ q+ p; B5 n. a; r, d0 @$ H4 p2 [' Q7 n$ V0 \6 I% Q4 Q
 #3 Warning   Unconnected Power Object On Net GND7 \3 d9 Q; A) u7 h0 A5 c) c
 Sheet1.Sch GND/ D! s* i% m9 K1 [( w
 
 5 L# K) \# f2 E- y#4 Warning   Unconnected Power Object On Net GND0 _5 K2 ~" }! [7 ^; b' \' L+ V# n
 Sheet1.Sch GND' g" B' ^9 j$ d% I3 b
 
 9 r; L5 i; X3 i! ?, k& B#5 Warning   Unconnected Power Object On Net GND
 2 |6 H, T+ j; L4 ~3 H1 F    Sheet1.Sch GND
 * J1 s* _7 I: O9 H0 T" l) M' C2 m/ c5 @, u# O# e$ ]0 e
 #6 Warning   Unconnected Power Object On Net VCC
 % i& r) `: h' t) F% R8 P6 N    Sheet1.Sch VCC
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 , u3 N% p/ @% ^, E6 y#7 Warning   Unconnected Power Object On Net VCC
 % y- y2 |* l7 A; r5 l- |. c    Sheet1.Sch VCC7 I- V( ]) K$ W+ i. R4 s- `
 
 _" V& K! Z5 t4 z8 M) }5 t1 s#8 Warning   Unconnected Power Object On Net VCC
 : H/ \5 r' y& J7 O' J1 A2 x6 U% i    Sheet1.Sch VCC- [2 e/ h# ^* }- L
 
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 End Report
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