logo导入不了？！

我把LOGO放复制到AUTOCAD后SAVE成*.DXF。准备导入ALLEGRO。可是老是出现DXF IMPORT LOGO：
Reading Layer conversion file
reading dxf file...
done
layer conversion file:3_l.cnv
DXF file:3.dxf
BRD file;/workspace/symbol/#taaaaam03664.dra
update existing design?:NO
use default text?:NO
DXF units:MILLIMETERS
Design units:MILLIMETERS
design precision:4
dxf2a complete

一直不明白是哪个地方出错了？请大家指教。