将igs文件导入LT出现以下问题: k;"R y8[k
^P3g9'WK
*** Error (AITX_BLANKED_ENTS) *** glOqft&>`
35]j;8N:
The input file did not contain any supported non blanked independant entities. IS5.i95m
CrRQPgl+u
Please check the documentation for a list of supported entities. m<X#W W)N
-Fp!w "=T
请教各位是什么原因,如何解决?