CAD tip # 7143:

Question

CAD
% platform category

; error: bad character read (octal): 0

When attempting to load a LISP application or a MNU/CUI menu, AutoCAD displays the error:

; error: bad character read (octal): N

The reason is in an improperly formatted LSP (or MNL) file. A LISP application must be in a text format, without any control (binary) characters.

Such special characters may get into your file either through a technical error (disk or communication error, virus), or simply by editing the file in Word or WordPad (they both add control characters), not in the classic Notepad or other plain text editor. Or this is is simply not a LISP file but e.g. a renamed EXE file.

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6.1.2010 16821×

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See also:
Tip 13683:	Limitations of the LISP language (AutoLISP, VisualLISP) in AutoCAD LT - what to watch out for
Tip 12131:	Error: no function definition: VLAX-ENAME->VLA-OBJECT or VLAX-VLA-OBJECT->ENAME
Tip 11996:	How to rotate selected blocks by the angle of an existing block?
Tip 11017:	How to select a DWG object by its internal ID, its "handle"?
Tip 10636:	The entity isn't planar to the World Coordinate System and can't be converted.

Selected tip: List all hyperlinks in your DWG drawing.

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