Heroku create command fails - no such file or directory -

i trying deploy first rails application heroku, , unfortunately getting error when running heroku create command:

@ c:\railsprojects\sample_app> heroku create system cannot find path specified. creating protected-reaches-1026... done, stack cedar http://protected-reaches-1026.herokuapp.com/ | git@heroku.com:protected-reaches-1026.git  !    heroku client internal error.  !    search at: https://help.heroku.com  !    or report bug at: https://github.com/heroku/heroku/issues/new      error:       no such file or directory -  git --version  (errno::enoent)     backtrace:   c:/users/paul/.heroku/client/lib/heroku/helpers.rb:103:in ``'                  c:/users/paul/.heroku/client/lib/heroku/helpers.rb:103:in `has_git?'                  c:/users/paul/.heroku/client/lib/heroku/helpers.rb:108:in `git'                  c:/users/paul/.heroku/client/lib/heroku/helpers.rb:156:in `create_git_remote'                  c:/users/paul/.heroku/client/lib/heroku/command/apps.rb:255:in `create'                  c:/users/paul/.heroku/client/lib/heroku/command.rb:206:in `run'                  c:/users/paul/.heroku/client/lib/heroku/cli.rb:28:in `start'                  c:/program files (x86)/heroku/bin/heroku:29:in `<main>'      command:     heroku create     version:     heroku/toolbelt/2.39.4 (i386-mingw32) ruby/1.9.3 

my initial thought git not in path or otherwise cannot called, eliminated part of problem running git --version:

@ c:\railsprojects\sample_app> git --version git version 1.8.3.msysgit.0 

so, seems in order. else know going wrong?

i running windows 7, , version of heroku client heroku/toolbelt/2.39.4 (i386-mingw32) ruby/1.9.3.

shouldn't give name of application want create. heroku create application_name. says in link.