您好，我想请教一下，我是按照描述安装的pytorch1.4，但是进行训练时错误如下？似乎是版本太过陈旧，然后我更换到1.12以上又会报其他错误。请问大佬这是什么原因？

[fonsjiang]

(OG) francisjiang@francisjiang:~/desktop/person-reid-3d$ python train_M.py --batch-size 30 --name Market_Efficient_ALL_2SDDense_b30_lr6_flip_slim0.5_warm10_scale_e0_d7+bg_adam_init768_clusterXYZRGB_e1000_id2_bn_k9_conv2_balance --id_skip 2 --slim 0.5 --flip --scale --lrRate 6e-4 --gpu_ids 0 --warm_epoch 10 --erase 0 --droprate 0.7 --use_dense --bg 1 --adam --init 768 --cluster xyzrgb --train_all --num-epoch 1000 --feature_dims 48,96,96,192,192,384,384 --efficient --k 9 --num_conv 2 --dataset 2DMarket --balance --gem --norm_layer bn2 --circle --amsgrad --gamma 64
/home/francisjiang/anaconda3/envs/OG/lib/python3.7/site-packages/torchvision/io/image.py:13: UserWarning: Failed to load image Python extension: libtorch_cpu.so: cannot open shared object file: No such file or directory
warn(f"Failed to load image Python extension: {e}")
Traceback (most recent call last):
File "train_M.py", line 6, in
from market3d import Market3D
File "/home/francisjiang/desktop/person-reid-3d/market3d.py", line 1, in
from torchvision import datasets
File "/home/francisjiang/anaconda3/envs/OG/lib/python3.7/site-packages/torchvision/init.py", line 7, in
from torchvision import models
File "/home/francisjiang/anaconda3/envs/OG/lib/python3.7/site-packages/torchvision/models/init.py", line 2, in
from .convnext import *
File "/home/francisjiang/anaconda3/envs/OG/lib/python3.7/site-packages/torchvision/models/convnext.py", line 8, in
from ..ops.misc import Conv2dNormActivation, Permute
File "/home/francisjiang/anaconda3/envs/OG/lib/python3.7/site-packages/torchvision/ops/init.py", line 2, in
from .boxes import (
File "/home/francisjiang/anaconda3/envs/OG/lib/python3.7/site-packages/torchvision/ops/boxes.py", line 78, in
@torch.jit._script_if_tracing
AttributeError: module 'torch.jit' has no attribute '_script_if_tracing'

[layumi]

Hi @fonsjiang

Please see pytorch/pytorch#42078

pip uninstall torchvision
pip install torchvision==0.5.0 -f https://download.pytorch.org/whl/torch_stable.html

Please check the torchvision version. It should match the pytorch version as follows.