您好，我这有一个关于"No object named 'HazeOnlineDataset' found in 'dataset' registry!"的问题

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Name HazeOnlineDataset is not found, use name: HazeOnlineDataset_basicsr!
File "D:\RIDCP_dehazing-master\RIDCP_dehazing-master\basicsr\train.py", line 243, in
train_pipeline(root_path)
File "D:\RIDCP_dehazing-master\RIDCP_dehazing-master\basicsr\train.py", line 137, in train_pipeline
File "D:\RIDCP_dehazing-master\RIDCP_dehazing-master\basicsr\train.py", line 51, in create_train_val_dataloader
train_set = build_dataset(dataset_opt)
File "D:\PIDCP\lib\site-packages\basicsr\data_init_.py", line 34, in build_dataset
File "D:\PIDCP\lib\site-packages\basicsr\utils\registry.py", line 71, in get
raise KeyError(f"No object named '{name}' found in '{self._name}' registry!")
KeyError: "No object named 'HazeOnlineDataset' found in 'dataset' registry!"

这个情况是怎么回事呢