error!: 407 "proxy authentication required"

[kenny G]

hi guys
please i encountere the following error while trying to deploy to
heroku, please could someone tell me what the error means.
$ heroku rake db:create
c:/Ruby/lib/ruby/1.8/net/http.rb:2097:in `error!': 407 "Proxy
Authentication Req
uired" (Net::HTTPServerException)
from c:/Ruby/lib/ruby/1.8/net/http.rb:2106:in `value'
from c:/Ruby/lib/ruby/1.8/net/http.rb:584:in `connect'
from c:/Ruby/lib/ruby/1.8/net/http.rb:553:in `do_start'
from c:/Ruby/lib/ruby/1.8/net/http.rb:542:in `start'
from c:/Ruby/lib/ruby/gems/1.8/gems/rest-client-1.4.2/lib/
restclient/req
uest.rb:150:in `transmit'
from c:/Ruby/lib/ruby/gems/1.8/gems/rest-client-1.4.2/lib/
restclient/req
uest.rb:55:in `execute'
from c:/Ruby/lib/ruby/gems/1.8/gems/rest-client-1.4.2/lib/
restclient/req
uest.rb:30:in `execute'
from c:/Ruby/lib/ruby/gems/1.8/gems/rest-client-1.4.2/lib/
restclient/res
ource.rb:63:in `post'
... 8 levels...
from c:/Ruby/lib/ruby/gems/1.8/gems/heroku-1.9.13/lib/heroku/
command.rb:
20:in `run'
from c:/Ruby/lib/ruby/gems/1.8/gems/heroku-1.9.13/bin/heroku:
13
from c:/Ruby/bin/heroku:19:in `load'
from c:/Ruby/bin/heroku:19

[Philip Arndt]

Seems like authentication with Heroku is failing?