Error: Channel not Open VCLOSE
AutoCAD/ArcCAD returns the error message:
"Channel not open (VCLOSE)"
The path name to the working directory is too long.
Solution or Workaround
Make sure the path name for the working directory is less than 45 characters, including back slashes. Also, make sure folder or file names are minimum three to maximum eight characters in length.
If the path name is OK, the problem may be with the prototype drawing.