pre-trained cam model cannot be load, cameraprediction/distratio/fc1/biases missing

[yigepingzi]

When using the pre-trained cam model to predict camera pose. It shows model cannot be loaded.
'Model loaded in file: checkpoint/cam_DISN/latest.ckpt
2022-03-24 20:48:42.002209: W tensorflow/core/framework/op_kernel.cc:1401] OP_REQUIRES failed at save_restore_v2_ops.cc:184 : Not found: Key cameraprediction/distratio/fc1/biases not found in checkpoint
Fail to load overall modelfile: checkpoint/cam_DISN'

How to get this 'cameraprediction/distratio/fc1/biases' value?
Thanks a lot.