whenever I starting the training.py it's showing error!

[Shibaditya99]

I already preprocess the data carefully as per the instructions. But whenever I starting the training py, I'm getting the same error. what is it means?
2022-01-12 05:11:45.851179: W tensorflow/core/common_runtime/gpu/gpu_bfc_allocator.cc:39] Overriding allow_growth setting because the TF_FORCE_GPU_ALLOW_GROWTH environment variable is set. Original config value was 0. Using One Device Strategy Datasets creation (training dataset, sample_test dataset, validation and dump_test dataset) Traceback (most recent call last): File "train.py", line 123, in <module> main() File "train.py", line 90, in main train_batcher = Data_helper(cfg, params, 16, "train", is_aug_data=True, create_anchors=True, strategy=strategy) File "/content/drive/My Drive/Voxelnet/data.py", line 37, in __init__ "Must have equivalent tags in image_2, label_2 and velodyne dirs, check those files" AssertionError: Must have equivalent tags in image_2, label_2 and velodyne dirs, check those files