how can i figure this problems the map and map50 is 0!!!

[mistletoe111]

  Epoch    GPU_mem   box_loss   cls_loss   dfl_loss  Instances       Size
   6/99      5.66G      7.085      13.34      5.611         11        640: 100%|██████████| 30/30 00:12
             Class     Images  Instances          P          R      mAP50   mAP50-95: 100%|██████████| 15/15 00:02
               all         59        449          0          0          0          0

[mistletoe111]

please give me some helps ,this makes me crazy

[Henry0528]

hello, have you solved the problem? I've met the same one