dsdump for objective c classes is not working.

[Paavani-git]

I have been trying to extract objective classes from AFNetworking binary file. It is not working and giving segmentation fault.
commands tried:

 ./dsdump --objc -vvv AFNetworking

./dsdump -o AFNetworking```

[Paavani-git]

This is for compiled file ds-dump file. here.