详解常见图像颜色空间（RGB、CMYK、HSV、HSL、YCbCr、CIE XYZ和CIE Lab）和图像阈值方法（全局阈值处理、自适应阈值处理和Otsu方法）

菅田将晖-:

File "D:\AAA_Study_File\ultralytics-main\train.py", line 38, in

train_results = model.train(

File "D:\AAA_Study_File\ultralytics-main\ultralytics\engine\model.py", line 800, in train

self.trainer.train()

File "D:\AAA_Study_File\ultralytics-main\ultralytics\engine\trainer.py", line 238, in train

self._do_train()

File "D:\AAA_Study_File\ultralytics-main\ultralytics\engine\trainer.py", line 519, in _do_train

self.plot_metrics()

File "D:\AAA_Study_File\ultralytics-main\ultralytics\engine\trainer.py", line 762, in plot_metrics

plot_results(file=self.csv, on_plot=self.on_plot) # save results.png

File "D:\AAA_Study_File\ultralytics-main\ultralytics\utils\__init__.py", line 379, in wrapper

result = func(*args, **kwargs)

File "D:\AAA_Study_File\ultralytics-main\ultralytics\utils\plotting.py", line 907, in plot_results

ax[1].legend()

UnboundLocalError: local variable 'ax' referenced before assignment

博主老师，请问有遇到过这种错误吗