BBox will not support Veil before next version, and i shared that info with url you could see in my first post here. BBox is based on Ubuntu 14.04 LTS and min requirements from Veil docks is Ubuntu 15.10 LTS.
And you can try to fix your error with this: https://null-byte.wonderhowto.com/forum/fix-veil-evasion-error-compiling-python-payloads-and-zero-payload-list-0169604/
(on your own risk)!
And pls, don't open topic after topic on same subject, next time i will remove without warning. Thanks