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CAD tip CAD tip # 3105:

Question CAD 
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Q - question

ARX_ERROR: eNotThatKindOfClass when opening a drawing in Architectural Desktop.

A - answer Typically: you are trying to open a drawing from a newer ADT (or LDT) version in older Architectural Desktop (or Land Desktop). Or your drawing contains Xrefs in a newer DWG format.

Save back the original DWG file in an older DWG format, or explode the AEC objects to plain AutoCAD entities (see also ExportoToAutocad).

100% *  CAD 
17.6.2003    21456×  
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applies to: AutoCAD Architecture · LDT ·

See also:
Tip 12131:Error: no function definition: VLAX-ENAME->VLA-OBJECT or VLAX-VLA-OBJECT->ENAME
Tip 8154:Unknown command MAPWSPACE - cannot start job panel in AutoCAD Map.
Tip 5151:FATAL ERROR: Commands may not be nested more than 4 deep
Tip 4922:ARX_ERROR: eNotThatKindOfClass, or eDuplicateKey
Tip 3190:Errors "ARX_ERROR: eOnLockedLayer" exporting from Architectural Desktop to AutoCAD.

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