测试出现问题?

 File "/home/jiangchang/anaconda3/envs/torch/lib/python3.8/site-packages/deepvac/core/deepvac.py", line 296, in process
    x = self.doTest()
  File "/tmp/pycharm_project_511/DB/DB/test.py", line 51, in doTest
    self.config.sample = img
UnboundLocalError: local variable 'img' referenced before assignment
代码没有改变 但是不能测试 
请问框架里面这个是什么  self.config.sample = img 谢谢

