Failed PEP8 check while building

[AravindhPadmanabhan]

I get the following errors while trying to colcon build this package:

gmake[5]: *** [CMakeFiles/pep8_check.dir/build.make:82: CMakeFiles/pep8_check] Error 1
gmake[4]: *** [CMakeFiles/Makefile2:531: CMakeFiles/pep8_check.dir/all] Error 2
gmake[4]: *** Waiting for unfinished jobs....
gmake[3]: *** [Makefile:146: all] Error 2
gmake[2]: *** [CMakeFiles/onnxruntime.dir/build.make:86: onnxruntime-prefix/src/onnxruntime-stamp/onnxruntime-build] Error 2
gmake[1]: *** [CMakeFiles/Makefile2:137: CMakeFiles/onnxruntime.dir/all] Error 2
gmake: *** [Makefile:146: all] Error 2
---
Failed   <<< epd_onnxruntime_vendor [5min 4s, exited with code 2]

Could you please guide me as to how I can fix this?

Thanks in advance!