title: Rake aborted! Don't know how to build task 'deploy'
body: <p>I am trying to deploy changes to my staging server (on heroku) and I keep on getting the following error message: </p>
  
  <pre><code>    Matthews-MacBook-Air-2:iGiveMore WorkWell$ rake deploy staging --trace
  rake aborted!
  Don't know how to build task 'deploy'
  /Users/WorkWell/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task_manager.rb:49:in `[]'
  /Users/WorkWell/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:142:in `invoke_task'
  /Users/WorkWell/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:101:in `block (2 levels) in top_level'
  /Users/WorkWell/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:101:in `each'
  /Users/WorkWell/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:101:in `block in top_level'
  /Users/WorkWell/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:110:in `run_with_threads'
  /Users/WorkWell/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:95:in `top_level'
  /Users/WorkWell/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:73:in `block in run'
  /Users/WorkWell/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:160:in `standard_exception_handling'
  /Users/WorkWell/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:70:in `run'
  /Users/WorkWell/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/bin/rake:33:in `&lt;top (required)&gt;'
  /Users/WorkWell/.rvm/gems/ruby-1.9.2-p290/bin/rake:23:in `load'
  /Users/WorkWell/.rvm/gems/ruby-1.9.2-p290/bin/rake:23:in `&lt;main&gt;'
  </code></pre>
  
  <p>please help!</p>