[求助]铺铜后报错

LISTING: 1 element(s)
< DRC ERROR >
Class: DRC ERROR CLASS
Subclass: TOP
Origin xy: (3168.52 1550.00)
CONSTRAINT: Line to Shape Spacing
CONSTRAINT SET: 10MIL
CONSTRAINT TYPE: NET SPACING CONSTRAINTS
Constraint value: 20 MIL
Actual value: 0 MIL
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Element type: SHAPE
Class: ETCH
Subclass: TOP
Part of Net Name: GND
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Element type: HORIZONTAL LINE SEGMENT
Class: ETCH
Subclass: TOP
part of a connect line
Part of Net Name: GND
segment:xy (3126.49 1550.00) xy (3400.00 1550.00) width (20.00)
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问题是这里的line的net就是GND，这里的铺铜就是GND。为什么还报 Line to Shape Spacing的距离间距错误。且我将Constraint value改成0，还会报这个错误
请各位大虾帮帮忙，万分感谢！！