在运行您的代码时，main.py文件出现以下错误，没找到原因来着，能请教一下吗

[Dyiiiya]

Traceback (most recent call last):
File "F:/Pycharm_file/Relation-Extraction-using-CNN-master/main.py", line 80, in
with open(path_config, 'r') as ymlfile:
NameError: name 'path_config' is not defined