Error message

A part of the line overlaps with other lines. Slightly move the line, and then try this operation again. (ErrS12)

• Cause
  Some lines of the pattern overlap.
  
  
   
• Solutions
  When the part of line overlap with other lines, the pattern may not be welded, divided, removed overlapped or subtracted.
  Edit the pattern so that the lines of the pattern do not overlap.