TypeError: object of type 'NoneType' has no len()

[brockpe]

I cloned and then implemented this project. When testing against included test files, I get these errors:

Traceback (most recent call last): File "/Users/peter/Desktop/./transcription-compare/transcribe-compare", line 171, in <module> main() File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/click/core.py", line 829, in __call__ return self.main(*args, **kwargs) File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/click/core.py", line 782, in main rv = self.invoke(ctx) File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/click/core.py", line 1066, in invoke return ctx.invoke(self.callback, **ctx.params) File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/click/core.py", line 610, in invoke return callback(*args, **kwargs) File "/Users/peter/Desktop/./transcription-compare/transcribe-compare", line 130, in main result = MultiResult(output_results, calculator_local) File "/Users/peter/Desktop/transcription-compare/transcription_compare/results/multi_result.py", line 32, in __init__ self.total_rows = len(self.alignment_results[0]) TypeError: object of type 'NoneType' has no len()

Thoughts on how to resolve these errors?