Problems with date preprocessing.

[AmorDiana]

faces: 0 0.04540089890360832 EXPORTING C:/Users/60488/Documents/stgan/cover/train/8_1000.obj ( 0.0000 sec | 0.0000 sec) OBJ Export path: 'C:/Users/60488/Documents/stgan/cover/train/8_1000.obj' ( 0.0110 sec | 0.0099 sec) Finished writing geometry of '8'. ( 0.0110 sec | 0.0099 sec) Finished exporting geometry, now exporting materials ( 0.0110 sec | 0.0099 sec) OBJ Export Finished Progress: 100.00%

Error: File format is not supported in file 'C:/Users/60488/Documents/stgan/cover/train/8.obj'

when i use blender to simplify my obj the questions occurs, but simplified obj is exported. Did the simplified obj has some mistakes? Or how can i solve the problem?