训练打印的log都为nan

[zhuawadan]

你好，我按照你的模型以及数据操作，进行训练，训练打印的log都为-nan，麻烦指教一下！
Region 82 Avg IOU: -nan, Class: -nan, Obj: -nan, No Obj: 0.435877, .5R: -nan, .75R: -nan, count: 0
Region 94 Avg IOU: -nan, Class: -nan, Obj: -nan, No Obj: 0.517376, .5R: -nan, .75R: -nan, count: 0
Region 106 Avg IOU: -nan, Class: -nan, Obj: -nan, No Obj: 0.541452, .5R: -nan, .75R: -nan, count: 0

[vicwer]

多迭代几万轮看看，一开始有nan正常，你的anchor重新设置了吗