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Error: ArcCAD ERROR: link system error(LINK...) or Channel not open(VCLOSE)

Error Message

AutoCAD/ArcCAD returns: "Channel not open (VCLOSE)"
AutoCAD/ArcCAD returns: "link system error (LINK...)"

Cause

The path name to the cover is too long or too short.

Solution or Workaround

Tested path names and the range at which this error occurs is from 45 to 50 characters, depending on system.

1. Make sure the path is less than 45 characters (including back slashes).
2. Make sure folder or filenames are no more than 8 characters and no less than 3 characters.