:\miniConda\envs\yolov7.2\lib\site-packages\torch\functional.py:445: UserWarning: torch.meshgrid: in an upcoming release, it will be required to pass the indexing argument. (Triggered internally at ..\aten\src\ATen\native\TensorShape.cpp:2157.) return _VF.meshgrid(tensors, **kwargs) # type: ignore[attr-defined] Model Summary: 407 layers, 37243175 parameters, 37243175 gradients, 105.3 GFLOPS Transferred 554/560 items from yolov7.pt Scaled weight_decay = 0.0005 Optimizer groups: 95 .bias, 95 conv.weight, 92 other Traceback (most recent call last): File "f:/Desktop/yolov7-main/train.py", line 618, in <module> train(hyp, opt, device, tb_writer) File "f:/Desktop/yolov7-main/train.py", line 247, in train dataloader, dataset = create_dataloader(train_path, imgsz, batch_size, gs, opt, File "f:\Desktop\yolov7-main\utils\datasets.py", line 69, in create_dataloader dataset = LoadImagesAndLabels(path, imgsz, batch_size, File "f:\Desktop\yolov7-main\utils\datasets.py", line 392, in __init__ cache, exists = torch.load(cache_path), True # load File "E:\miniConda\envs\yolov7.2\lib\site-packages\torch\serialization.py", line 608, in load return _legacy_load(opened_file, map_location, pickle_module, **pickle_load_args) File "E:\miniConda\envs\yolov7.2\lib\site-packages\torch\serialization.py", line 777, in _legacy_load magic_number = pickle_module.load(f, **pickle_load_args) _pickle.UnpicklingError: STACK_GLOBAL requires str