TypeError: 'NoneType' object is not iterable 我这边报这个错，请问一能帮一下忙吗

[Asuwill]

MacBook-Pro-6:~ armark$ python3 /Users/armark/Desktop/sourceCode_view/代码混淆/TMConfuse/CodeConfuse/Confuse.py \

-i /Users/armark/MeiCloud/mission5.0_V4.0
-c /Users/armark/MeiCloud/mission5.0_V4.0/Pods
-o /Users/armark/Desktop/toBeConfuse
Start scanning System identifiers...
Traceback (most recent call last):
File "/Users/armark/Desktop/sourceCode_view/代码混淆/TMConfuse/CodeConfuse/Confuse.py", line 522, in
system_identifiers = DealSystemIdentifiers(system_dirs).parse_system_identifiers()
File "/Users/armark/Desktop/sourceCode_view/代码混淆/TMConfuse/CodeConfuse/Confuse.py", line 300, in parse_system_identifiers
system_file_paths = ConfuseBiz.scan_path(self.system_file_dirs, None, ['h'])
File "/Users/armark/Desktop/sourceCode_view/代码混淆/TMConfuse/CodeConfuse/Confuse.py", line 24, in scan_path
for input_dir in input_dirs:
TypeError: 'NoneType' object is not iterable