bash-4.1# padrino rake --trace
=> Executing Rake --trace ...
rake aborted!
Don't know how to build task 'default'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1728:in `[]'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2050:in `invoke_task'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/padrino-core-0.9.19/lib/padrino-core/cli/rake.rb:9:in `init'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/padrino-core-0.9.19/lib/padrino-core/cli/base.rb:49:in `rake'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/thor-0.14.6/lib/thor/task.rb:22:in `send'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/thor-0.14.6/lib/thor/task.rb:22:in `run'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/thor-0.14.6/lib/thor.rb:263:in `dispatch'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/thor-0.14.6/lib/thor/base.rb:389:in `start'
/opt/rubystack-2.1-0/ruby/lib/ruby/gems/1.8/gems/padrino-core-0.9.19/bin/padrino:8
/usr/local/bin/padrino:19:in `load'
/usr/local/bin/padrino:19