运行yolov5训练时报错

Traceback (most recent call last):
File "D:\yolov5\train.py", line 620, in
main(opt)
File "D:\yolov5\train.py", line 517, in main
train(opt.hyp, opt, device, callbacks)
File "D:\yolov5\train.py", line 88, in train
loggers = Loggers(save_dir, weights, opt, hyp, LOGGER) # loggers instance
File "D:\yolov5\utils\loggers_init.py", line 69, in init
self.wandb = WandbLogger(self.opt, run_id)
File "D:\yolov5\utils\loggers\wandb\wandb_utils.py", line 180, in init
self.data_dict = check_wandb_dataset(opt.data)
File "D:\yolov5\utils\loggers\wandb\wandb_utils.py", line 49, in check_wandb_dataset
data_dict = yaml.safe_load(f)
File "D:\anaconda3\envs\pyTorch\lib\site-packages\yaml_init
.py", line 125, in safe_load
return load(stream, SafeLoader)
File "D:\anaconda3\envs\pyTorch\lib\site-packages\yaml_init_.py", line 81, in load
return loader.get_single_data()
File "D:\anaconda3\envs\pyTorch\lib\site-packages\yaml\constructor.py", line 49, in get_single_data
node = self.get_single_node()
File "D:\anaconda3\envs\pyTorch\lib\site-packages\yaml\composer.py", line 36, in get_single_node
document = self.compose_document()
File "D:\anaconda3\envs\pyTorch\lib\site-packages\yaml\composer.py", line 55, in compose_document
node = self.compose_node(None, None)
File "D:\anaconda3\envs\pyTorch\lib\site-packages\yaml\composer.py", line 84, in compose_node
node = self.compose_mapping_node(anchor)
File "D:\anaconda3\envs\pyTorch\lib\site-packages\yaml\composer.py", line 127, in compose_mapping_node
while not self.check_event(MappingEndEvent):
File "D:\anaconda3\envs\pyTorch\lib\site-packages\yaml\parser.py", line 98, in check_event
self.current_event = self.state()
File "D:\anaconda3\envs\pyTorch\lib\site-packages\yaml\parser.py", line 428, in parse_block_mapping_key
if self.check_token(KeyToken):
File "D:\anaconda3\envs\pyTorch\lib\site-packages\yaml\scanner.py", line 115, in check_token
while self.need_more_tokens():
File "D:\anaconda3\envs\pyTorch\lib\site-packages\yaml\scanner.py", line 152, in need_more_tokens
self.stale_possible_simple_keys()
File "D:\anaconda3\envs\pyTorch\lib\site-packages\yaml\scanner.py", line 291, in stale_possible_simple_keys
raise ScannerError("while scanning a simple key", key.mark,
yaml.scanner.ScannerError: while scanning a simple key
in "D:\yolov5\data\mark_data.yaml", line 5, column 1
could not find expected ':'
in "D:\yolov5\data\mark_data.yaml", line 7, column 1
wandb: Waiting for W&B process to finish... (failed 1).