在进行token-transformer训练时提示错误

python3 main.py -c configs/recognition/token_transformer/tokShift_transformer_ucf101_256_videos.yaml --validate --seed=1234时，提示如下：
[03/27 02:54:47] Error when loading /home/test/code/PaddleVideo/data/ucf101/videos/runing/runing_00110.avi, have 0 trys, will try again
所有视频都读取失败，请问是什么原因呢？