My GemFile

source :gemcutter
gem "rails", "2.3.4"
gem "pg"

# bundler requires these gems in all environments
gem 'will_paginate'
gem 'warden'
gem 'devise', "1.0.8"
gem "panda", "1.0"
gem 'formtastic', '1.1'
gem 'inherited_resources', '1.0.6'
gem 'cancan','1.0.2'
gem 'memcached-northscale', :require => 'memcached'

group :development do
  # bundler requires these gems in development
  # gem "rails-footnotes"
  gem "wirble"
  gem "what_methods"
end

group :test do
  # bundler requires these gems while running tests
  # gem "rspec"
  # gem "faker"
end

Stack:

Stack

eroku rake db:migrate --trace
/Users/jtushman/.rvm/gems/ruby-1.8.7-p174/gems/json_pure-1.4.6/lib/json/common.rb:65: warning: already initialized constant State
/Users/jtushman/.rvm/gems/ruby-1.8.7-p174/gems/json_pure-1.4.6/lib/json/common.rb:66: warning: already initialized constant SAFE_STATE_PROTOTYPE
/Users/jtushman/.rvm/gems/ruby-1.8.7-p174/gems/json_pure-1.4.6/lib/json/common.rb:67: warning: already initialized constant FAST_STATE_PROTOTYPE
/Users/jtushman/.rvm/gems/ruby-1.8.7-p174/gems/json_pure-1.4.6/lib/json/common.rb:74: warning: already initialized constant PRETTY_STATE_PROTOTYPE
/Users/jtushman/.rvm/gems/ruby-1.8.7-p174/gems/json_pure-1.4.6/lib/json/ext.rb:14: warning: already initialized constant JSON_LOADED
rake aborted!
uninitialized constant Rails::Initializer::Memcached
/disk1/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:105:in `const_missing'
/disk1/home/slugs/292672_43ca7cf_9786/mnt/config/environments/production.rb:20:in `load_environment'
/disk1/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rails-2.3.4/lib/initializer.rb:386:in `load_environment'
/disk1/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/activesupport-2.3.4/lib/active_support/core_ext/kernel/reporting.rb:11:in `silence_warnings'
/disk1/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rails-2.3.4/lib/initializer.rb:379:in `load_environment'
/disk1/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rails-2.3.4/lib/initializer.rb:137:in `process'
/disk1/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rails-2.3.4/lib/initializer.rb:113:in `send'
/disk1/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rails-2.3.4/lib/initializer.rb:113:in `run'
/disk1/home/slugs/292672_43ca7cf_9786/mnt/config/environment.rb:21
/disk1/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require'
/disk1/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require'
/disk1/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:521:in `new_constants_in'
/disk1/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require'
/disk1/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rails-2.3.4/lib/tasks/misc.rake:4
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain'
/usr/ruby1.8.7/lib/ruby/1.8/monitor.rb:242:in `synchronize'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain'
/usr/ruby1.8.7/lib/ruby/1.8/monitor.rb:242:in `synchronize'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run'
/home/slugs/292672_43ca7cf_9786/mnt/.bundle/gems/ruby/1.8/gems/rake-0.8.7/bin/rake:31
/usr/ruby1.8.7/bin/rake:19:in `load'
/usr/ruby1.8.7/bin/rake:19
(in /disk1/home/slugs/292672_43ca7cf_9786/mnt)
** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment