MonoD doesn't open dub.sdl file!?!

[Jason Jeffory via Digitalmars-d-ide]

On Monday, 4 January 2016 at 18:26:11 UTC, Jason Jeffory wrote:
> I have two dub projects, one uses the json format and the other 
> sdl(Why are there two formats btw? Whats the point of the "new 
> and improved" file?). monoD won't open the dub project if it 
> uses the sdl format! (just opens the file as a text)

Also, is there a way to convert the sdl project version to json?