Imported Google Group message.
Date:Tuesday, 6 October 2015 17:38:40 UTC+1.
The formatting here looks wrong - I'm not sure what kind of API Blueprint JSON output this is, but it's not the same AST as that provided by their own tools - take a look at the JSON output from the Hello World example here:
If you are using Drafter, I think you need to specify the AST like this:
drafter --type=ast --format=json blueprint.apib
See more detail here: https://github.com/apiaryio/drafter/blob/master/features/parse.feature