deployment - Cannot run heroku pg:info from rake task -

I am writing a rake work to deploy on my rock, there is only one step in the job: < P> sh% {heroku pg: info --app myapp}

and failed with it

myoku pg: info Unknown command Run 'Harkuuk Aid' to use information rack abortion! Failure with command status (1): [Heroki PG: info --app ...]

The funny thing is that any other hack command starts working

idea?

Thanks in advance for any help

due to the problem rack, the hackoku mani Version 1.6.3, which does not support PG commands. After updating my jamfile to update Harkoku to 1.18.3 I started to do everything.