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CAD tip CAD tip # 4000:

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AutoCAD displays this warning if you try to insert a block (or a drawing containing a block) with the same name as one of the blocks defined in the current drawing. AutoCAD warns that it will use the existing (old) definition of the block.

If you want to redefine (overwrite) the existing definition of a block in your drawing, use the -INSERT (_-INSERT) command as:

  
_-INSERT oldblockname=newblockname
and cancel (interrupt) the command right after the first prompt with the ESC key. With this, you will overwrite the old block definition with the new contents from the external file newblockname.DWG
ACADACLTACADMADTMap
100% *CAD
3.9.2004    78690×  
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See also:
Tip 14526:How to export geometry from AutoCAD DWGs to JSON files and import it back?
Tip 14443:Connector, notch, groove, cutout or other curve- breaks - easily with dynamic blocks.
Tip 14414:Link geo-tagged photos from your mobile phone to AutoCAD DWG maps.
Tip 14402:What is the difference between the BLOCKREPLACE, BREPLACE, REPLACEBLOCK, RIBLOCK and BLKREDEF commands?
Tip 14386:Visual catalog of blocks defined in a DWG drawing.
Selected tip: How to save AutoSketch R7 drawings for older versions of AutoSketch?


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