engine yard error

gistfile1.txt

ERROR: Exception during deploy: #<EY::Serverside::RemoteFailure: The following command failed on server [ec2-54-164-74-155.compute-1.amazonaws.com(solo)]

$ ssh -i /home/deploy/.ssh/internal -o StrictHostKeyChecking=no -o UserKnownHostsFile=/tmp/ey-ss-known-hosts20141110-19079-1enm80j -o PasswordAuthentication=no -o ServerAliveInterval=60 deploy@ec2-54-164-74-155.compute-1.amazonaws.com 'sh -l -c '\''export GIT_SSH="/data/email_extraction/shared/config/email_extraction-ssh-wrapper" && export LANG="en_US.UTF-8" && unset RUBYOPT BUNDLE_PATH BUNDLE_FROZEN BUNDLE_WITHOUT BUNDLE_BIN BUNDLE_GEMFILE && cd /data/email_extraction/releases/20141110220420 && ruby -S bundle _1.3.5_ install --gemfile /data/email_extraction/releases/20141110220420/Gemfile --path /data/email_extraction/shared/bundled_gems --binstubs /data/email_extraction/releases/20141110220420/ey_bundler_binstubs --deployment --without test development'\'

`mri_21` is not a valid platform. The available options are: [:ruby, :ruby_18,
:ruby_19, :ruby_20, :mri, :mri_18, :mri_19, :mri_20, :rbx, :jruby, :mswin,
:mingw, :mingw_18, :mingw_19, :mingw_20]

>
["/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/servers.rb:128:in `run_for_each!'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/servers.rb:85:in `run_on_each!'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/task.rb:74:in `run'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/dependency_manager/base.rb:37:in `block in run'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/task.rb:67:in `roles'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/dependency_manager/base.rb:36:in `run'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/dependency_manager/bundler.rb:53:in `install'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/dependency_manager.rb:72:in `block in install'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/dependency_manager.rb:52:in `each'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/dependency_manager.rb:52:in `each'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/dependency_manager.rb:72:in `install'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/deploy.rb:98:in `install_dependencies'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/deploy.rb:94:in `bundle'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/deploy.rb:119:in `run_with_callbacks'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/deploy.rb:33:in `block in cached_deploy'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/deploy.rb:269:in `call'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/deploy.rb:269:in `block in new_release'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/deploy.rb:480:in `with_failed_release_cleanup'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/deploy.rb:266:in `new_release'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/deploy.rb:29:in `cached_deploy'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/deploy.rb:18:in `deploy'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/cli.rb:50:in `block in deploy'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/cli.rb:165:in `block in init_and_propagate'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/cli.rb:177:in `init'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/cli.rb:162:in `init_and_propagate'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/engineyard-serverside/cli.rb:49:in `deploy'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/vendor/thor/lib/thor/task.rb:27:in `run'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/vendor/thor/lib/thor/invocation.rb:120:in `invoke_task'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/vendor/thor/lib/thor.rb:275:in `dispatch'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/lib/vendor/thor/lib/thor/base.rb:425:in `start'", "/usr/local/ey_resin/ruby/lib/ruby/gems/1.9.1/gems/engineyard-serverside-2.4.2/bin/engineyard-serverside:11:in `<top (required)>'", "/usr/local/ey_resin/ruby/bin/engineyard-serverside:23:in `load'", "/usr/local/ey_resin/ruby/bin/engineyard-serverside:23:in `<main>'"]
[Relax] Your site is still running old code and nothing destructive has occurred.
ERROR: The following command failed on server [ec2-54-164-74-155.compute-1.amazonaws.com(solo)]

$ ssh -i /home/deploy/.ssh/internal -o StrictHostKeyChecking=no -o UserKnownHostsFile=/tmp/ey-ss-known-hosts20141110-19079-1enm80j -o PasswordAuthentication=no -o ServerAliveInterval=60 deploy@ec2-54-164-74-155.compute-1.amazonaws.com 'sh -l -c '\''export GIT_SSH="/data/email_extraction/shared/config/email_extraction-ssh-wrapper" && export LANG="en_US.UTF-8" && unset RUBYOPT BUNDLE_PATH BUNDLE_FROZEN BUNDLE_WITHOUT BUNDLE_BIN BUNDLE_GEMFILE && cd /data/email_extraction/releases/20141110220420 && ruby -S bundle _1.3.5_ install --gemfile /data/email_extraction/releases/20141110220420/Gemfile --path /data/email_extraction/shared/bundled_gems --binstubs /data/email_extraction/releases/20141110220420/ey_bundler_binstubs --deployment --without test development'\'

`mri_21` is not a valid platform. The available options are: [:ruby, :ruby_18,
:ruby_19, :ruby_20, :mri, :mri_18, :mri_19, :mri_20, :rbx, :jruby, :mswin,
:mingw, :mingw_18, :mingw_19, :mingw_20]
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