AutoCAD Variable Setting Rejected: "cmdecho" Nil

Issue

You saw the following error message:

AutoCAD variable setting rejected: "cmdecho" nil

Although this error pops up most commonly after a user presses the Esc key to end a command, it can result from any number of commands.

Cause

This script, written in 1987, redefines the core AutoLISP "exit" function in an egregious and incredibly incorrect manner.

Solution

If you saw the error listed above, type WEED in the CAD Command line and press Enter to check for the offending LISP script.

If the Command line immediately prompts you to Enter offset distance:, you have WEED.

If so, you'll need to remove it from your computer. To do so, you can search for weed.lsp in Windows Explorer and simply delete this file.

Unable to locate weed.lsp?

Type (findfile "weed.lsp") in the CAD Command line – including the parentheses and quotation marks – and press Enter.

You'll then see the full path to the file, and you can then navigate to and delete it from your computer.

Our PolyOptimize tool minimizes the number of vertices in a polyline – likely the reason you first downloaded Weed. We recommend giving PolyOptimize try. We think you'll strongly prefer it!