when starting a build for a package that does not have an attribute:
File "./../lib/LightBuildServer.py", line 307, in AddToBuildQueue
avoidlxc = False if ("UseLXC" not in pkg) else (pkg["UseLXC"] == False)
TypeError: argument of type 'NoneType' is not iterable
when starting a build for a package that does not have an attribute: