When submitting the following build manifest (which I guess is invalid YAML):

image:freebsd/latest

I get the error: "'str' object has no attribute 'get'" which has no relation to YAML or what is wrong as far as I can tell. I'm not sure what this means, possibly it's a bug in Python land somewhere. It would be more helpful if it told me that the YAML was invalid (or whatever the problem with that manifest actually is).