Broken bundle env. Dependency error when running 'bundle update rails_admin'

gistfile1.txt

Bundler 1.7.7
Ruby 2.1.3 (2014-09-19 patchlevel 242) [x86_64-darwin13.0]
Rubygems 2.2.2
rvm 1.26.3 (latest)
GEM_HOME /Users/jori/.rvm/gems/ruby-2.1.3@swipesense_rails_server
GEM_PATH /Users/jori/.rvm/gems/ruby-2.1.3@swipesense_rails_server:/Users/jori/.rvm/gems/ruby-2.1.3@global
rubygems-bundler (1.4.4)


Gemfile
source 'https://rubygems.org'
ruby '2.1.3'
gem 'rails', '~>4.1.0'

gem 'angularjs-rails'
gem 'aws-sdk', '~>1.5.7'
gem 'bootstrap-sass', '~> 3.3.0'
gem 'bootstrap-wysihtml5-rails'
gem 'browser-timezone-rails'
gem 'coffee-rails'
gem 'compass-rails'
gem 'devise', '~>3.0.0'
gem 'devise_account_expireable'
gem 'draper', '~> 1.3'
gem 'exception_handler'
gem 'factory_girl_rails'
gem 'font_assets'
gem 'font-awesome-rails'
gem 'haml-rails'
gem 'jquery-rails'
gem 'jquery-turbolinks'
gem 'json'
gem 'judge'
gem 'judge-simple_form', github: 'ricardodovalle/judge-simple_form'
gem 'kaminari'
gem 'bootstrap-kaminari-views'
gem 'mysql2'
gem 'newrelic_rpm'
gem 'nokogiri'
gem 'oj'
gem 'oj_mimic_json'
gem 'paperclip', '~>4.2'
gem 'pdfcrowd'
gem 'premailer-rails'
gem 'puma'
gem 'pundit'
gem 'rack-cors', require: 'rack/cors'
gem 'rack-timeout'
gem 'rails_admin', github: 'swipesense/rails_admin'
gem 'rails_admin_pundit', :github => 'sudosu/rails_admin_pundit'
gem 'rb-readline'
gem 'redis-rails'
gem 'redis-objects'
gem 'ruby-progressbar'
gem 'sass-rails'
gem 'sidekiq'
gem 'sidekiq-cron', '~> 0.2.0'
gem 'simple_form', github: 'plataformatec/simple_form'
gem 'sinatra', '>= 1.3.0', :require => nil
gem 'stringex'
gem 'table_print'
gem 'timecop'
gem 'turbolinks'
gem 'uglifier'
gem 'yui-compressor'

group :development do
  gem 'annotate', github: 'ctran/annotate_models'
  gem 'better_errors'
  gem 'binding_of_caller'
  # gem 'brakeman' # Security scanner.
  gem 'hirb' # Console table formatting.
  gem 'meta_request' # Used in chrome rails panel.
  gem 'quiet_assets'
  gem 'smusher'
  gem 'spring'
end

group :test do
  gem 'capybara'
  gem 'capybara-screenshot'
  gem 'capybara-webkit', github: 'thoughtbot/capybara-webkit'
  gem 'database_cleaner'
  gem 'launchy'
  gem 'rspec-rails'
end

group :development, :test do
  gem 'byebug'
  gem 'callback_skipper'
end

group :staging, :production do
  gem 'heroku-deflater'
  gem 'le'
end


Gemfile.lock
GIT
  remote: git://github.com/ctran/annotate_models.git
  revision: 9634ea6e67851d4a9a4d0b89597a6a9d3fc4d1f4
  specs:
    annotate (2.6.5)
      activerecord (>= 2.3.0)
      rake (>= 0.8.7)

GIT
  remote: git://github.com/plataformatec/simple_form.git
  revision: 812f1209bc1d0c264f7e15ad2bdaf98eb1883469
  specs:
    simple_form (3.1.0.rc2)
      actionpack (~> 4.0)
      activemodel (~> 4.0)

GIT
  remote: git://github.com/ricardodovalle/judge-simple_form.git
  revision: ced1272457f51bca19896cf8d69ee943ef860d8c
  specs:
    judge-simple_form (0.4.0)
      judge (~> 2.0)
      simple_form (>= 2.0)

GIT
  remote: git://github.com/sudosu/rails_admin_pundit.git
  revision: 285e3e79a37242cf7a527053e9b438782801557a
  specs:
    rails_admin_pundit (0.0.1)
      pundit (>= 0.2.3)
      rails_admin (>= 0.6.2)

GIT
  remote: git://github.com/swipesense/rails_admin.git
  revision: e8afc8b05eedba3986cdfed808fa776831a78212
  specs:
    rails_admin (0.6.3)
      builder (~> 3.1)
      coffee-rails (~> 4.0)
      font-awesome-rails (>= 3.0)
      haml (~> 4.0)
      jquery-rails (~> 3.0)
      jquery-ui-rails (~> 5.0)
      kaminari (~> 0.14)
      nested_form (~> 0.3)
      rack-pjax (~> 0.7)
      rails (~> 4.0)
      remotipart (~> 1.0)
      safe_yaml (~> 1.0)
      sass-rails (>= 4.0)

GIT
  remote: git://github.com/thoughtbot/capybara-webkit.git
  revision: 144a43ff7b6c71bf655905f06853b29ed111f335
  specs:
    capybara-webkit (1.2.0)
      capybara (>= 2.0.2, < 2.4.0)
      json

GEM
  remote: https://rubygems.org/
  specs:
    actionmailer (4.1.8)
      actionpack (= 4.1.8)
      actionview (= 4.1.8)
      mail (~> 2.5, >= 2.5.4)
    actionpack (4.1.8)
      actionview (= 4.1.8)
      activesupport (= 4.1.8)
      rack (~> 1.5.2)
      rack-test (~> 0.6.2)
    actionview (4.1.8)
      activesupport (= 4.1.8)
      builder (~> 3.1)
      erubis (~> 2.7.0)
    activemodel (4.1.8)
      activesupport (= 4.1.8)
      builder (~> 3.1)
    activerecord (4.1.8)
      activemodel (= 4.1.8)
      activesupport (= 4.1.8)
      arel (~> 5.0.0)
    activesupport (4.1.8)
      i18n (~> 0.6, >= 0.6.9)
      json (~> 1.7, >= 1.7.7)
      minitest (~> 5.1)
      thread_safe (~> 0.1)
      tzinfo (~> 1.1)
    addressable (2.3.6)
    angularjs-rails (1.2.21)
    arel (5.0.1.20140414130214)
    aws-sdk (1.5.8)
      httparty (~> 0.7)
      json (~> 1.4)
      nokogiri (>= 1.4.4)
      uuidtools (~> 2.1)
    bcrypt (3.1.7)
    bcrypt-ruby (3.1.5)
      bcrypt (>= 3.1.3)
    better_errors (0.9.0)
      coderay (>= 1.0.0)
      erubis (>= 2.6.6)
    binding_of_caller (0.7.2)
      debug_inspector (>= 0.0.1)
    bootstrap-kaminari-views (0.0.5)
      kaminari (>= 0.13)
      rails (>= 3.1)
    bootstrap-sass (3.3.0.1)
      sass (~> 3.2)
    bootstrap-wysihtml5-rails (0.3.2.100)
      railties (>= 3.0)
    browser-timezone-rails (0.0.7)
      jquery-rails
      rails (>= 3.1)
    builder (3.2.2)
    byebug (3.2.0)
      columnize (~> 0.8)
      debugger-linecache (~> 1.2)
    callback_skipper (1.0.0)
      activerecord (>= 3.0)
    callsite (0.0.11)
    capybara (2.3.0)
      mime-types (>= 1.16)
      nokogiri (>= 1.3.3)
      rack (>= 1.0.0)
      rack-test (>= 0.5.4)
      xpath (~> 2.0)
    capybara-screenshot (0.3.21)
      capybara (>= 1.0, < 3)
      colorize
      launchy
    celluloid (0.15.2)
      timers (~> 1.1.0)
    chunky_png (1.3.3)
    climate_control (0.0.3)
      activesupport (>= 3.0)
    cocaine (0.5.4)
      climate_control (>= 0.0.3, < 1.0)
    coderay (1.0.9)
    coffee-rails (4.0.1)
      coffee-script (>= 2.2.0)
      railties (>= 4.0.0, < 5.0)
    coffee-script (2.3.0)
      coffee-script-source
      execjs
    coffee-script-source (1.8.0)
    colorize (0.7.3)
    columnize (0.8.9)
    compass (0.12.7)
      chunky_png (~> 1.2)
      fssm (>= 0.2.7)
      sass (~> 3.2.19)
    compass-rails (2.0.0)
      compass (>= 0.12.2)
    connection_pool (2.0.0)
    css_parser (1.3.5)
      addressable
    database_cleaner (1.3.0)
    debug_inspector (0.0.2)
    debugger-linecache (1.2.0)
    devise (3.0.4)
      bcrypt-ruby (~> 3.0)
      orm_adapter (~> 0.1)
      railties (>= 3.2.6, < 5)
      warden (~> 1.2.3)
    devise_account_expireable (0.0.2)
      devise (>= 2.0.4)
      rails (>= 3.2)
    diff-lcs (1.2.5)
    draper (1.3.1)
      actionpack (>= 3.0)
      activemodel (>= 3.0)
      activesupport (>= 3.0)
      request_store (~> 1.0.3)
    erubis (2.7.0)
    exception_handler (0.3.45)
    execjs (2.2.1)
    factory_girl (4.4.0)
      activesupport (>= 3.0.0)
    factory_girl_rails (4.4.1)
      factory_girl (~> 4.4.0)
      railties (>= 3.0.0)
    font-awesome-rails (4.2.0.0)
      railties (>= 3.2, < 5.0)
    font_assets (0.1.11)
      rack
    fssm (0.2.10)
    haml (4.0.5)
      tilt
    haml-rails (0.5.3)
      actionpack (>= 4.0.1)
      activesupport (>= 4.0.1)
      haml (>= 3.1, < 5.0)
      railties (>= 4.0.1)
    heroku-deflater (0.5.3)
      rack (>= 1.4.5)
    hike (1.2.3)
    hirb (0.7.2)
    htmlentities (4.3.2)
    httparty (0.13.1)
      json (~> 1.8)
      multi_xml (>= 0.5.2)
    httpclient (2.4.0)
    i18n (0.6.11)
    jquery-rails (3.1.2)
      railties (>= 3.0, < 5.0)
      thor (>= 0.14, < 2.0)
    jquery-turbolinks (2.0.2)
      railties (>= 3.1.0)
      turbolinks
    jquery-ui-rails (5.0.0)
      railties (>= 3.2.16)
    json (1.8.1)
    judge (2.0.4)
      rails (>= 3.1)
    kaminari (0.16.1)
      actionpack (>= 3.0.0)
      activesupport (>= 3.0.0)
    launchy (2.4.2)
      addressable (~> 2.3)
    le (2.3.9)
    mail (2.6.3)
      mime-types (>= 1.16, < 3)
    meta_request (0.3.4)
      callsite (~> 0.0, >= 0.0.11)
      rack-contrib (~> 1.1)
      railties (>= 3.0.0, < 5.0.0)
    mime-types (2.4.3)
    mini_portile (0.6.0)
    minitest (5.4.3)
    multi_json (1.10.1)
    multi_xml (0.5.5)
    mysql2 (0.3.16)
    nested_form (0.3.2)
    newrelic_rpm (3.9.1.236)
    nokogiri (1.6.3.1)
      mini_portile (= 0.6.0)
    oj (2.10.1)
    oj_mimic_json (1.0.1)
    orm_adapter (0.5.0)
    paperclip (4.2.0)
      activemodel (>= 3.0.0)
      activesupport (>= 3.0.0)
      cocaine (~> 0.5.3)
      mime-types
    pdfcrowd (2.6.0)
    premailer (1.8.2)
      css_parser (>= 1.3.5)
      htmlentities (>= 4.0.0)
    premailer-rails (1.7.0)
      actionmailer (>= 3, < 5)
      premailer (~> 1.7, >= 1.7.9)
    puma (2.9.0)
      rack (>= 1.1, < 2.0)
    pundit (0.3.0)
      activesupport (>= 3.0.0)
    quiet_assets (1.0.3)
      railties (>= 3.1, < 5.0)
    rack (1.5.2)
    rack-contrib (1.1.0)
      rack (>= 0.9.1)
    rack-cors (0.2.9)
    rack-pjax (0.8.0)
      nokogiri (~> 1.5)
      rack (~> 1.1)
    rack-protection (1.5.3)
      rack
    rack-test (0.6.2)
      rack (>= 1.0)
    rack-timeout (0.0.4)
    rails (4.1.8)
      actionmailer (= 4.1.8)
      actionpack (= 4.1.8)
      actionview (= 4.1.8)
      activemodel (= 4.1.8)
      activerecord (= 4.1.8)
      activesupport (= 4.1.8)
      bundler (>= 1.3.0, < 2.0)
      railties (= 4.1.8)
      sprockets-rails (~> 2.0)
    railties (4.1.8)
      actionpack (= 4.1.8)
      activesupport (= 4.1.8)
      rake (>= 0.8.7)
      thor (>= 0.18.1, < 2.0)
    rake (10.3.2)
    rb-readline (0.5.1)
    redis (3.1.0)
    redis-actionpack (4.0.0)
      actionpack (~> 4)
      redis-rack (~> 1.5.0)
      redis-store (~> 1.1.0)
    redis-activesupport (4.0.0)
      activesupport (~> 4)
      redis-store (~> 1.1.0)
    redis-namespace (1.5.1)
      redis (~> 3.0, >= 3.0.4)
    redis-objects (1.0.0)
      redis (>= 3.0.2)
    redis-rack (1.5.0)
      rack (~> 1.5)
      redis-store (~> 1.1.0)
    redis-rails (4.0.0)
      redis-actionpack (~> 4)
      redis-activesupport (~> 4)
      redis-store (~> 1.1.0)
    redis-store (1.1.4)
      redis (>= 2.2)
    remotipart (1.2.1)
    request_store (1.0.8)
    rspec-core (3.1.2)
      rspec-support (~> 3.1.0)
    rspec-expectations (3.1.0)
      diff-lcs (>= 1.2.0, < 2.0)
      rspec-support (~> 3.1.0)
    rspec-mocks (3.1.0)
      rspec-support (~> 3.1.0)
    rspec-rails (3.1.0)
      actionpack (>= 3.0)
      activesupport (>= 3.0)
      railties (>= 3.0)
      rspec-core (~> 3.1.0)
      rspec-expectations (~> 3.1.0)
      rspec-mocks (~> 3.1.0)
      rspec-support (~> 3.1.0)
    rspec-support (3.1.0)
    ruby-progressbar (1.5.1)
    rufus-scheduler (3.0.9)
      tzinfo
    safe_yaml (1.0.4)
    sass (3.2.19)
    sass-rails (4.0.3)
      railties (>= 4.0.0, < 5.0)
      sass (~> 3.2.0)
      sprockets (~> 2.8, <= 2.11.0)
      sprockets-rails (~> 2.0)
    sidekiq (3.2.5)
      celluloid (= 0.15.2)
      connection_pool (>= 2.0.0)
      json
      redis (>= 3.0.6)
      redis-namespace (>= 1.3.1)
    sidekiq-cron (0.2.0)
      rufus-scheduler (>= 2.0.24)
      sidekiq (>= 2.17.3)
      tilt (< 2.0.0)
    sinatra (1.4.5)
      rack (~> 1.4)
      rack-protection (~> 1.4)
      tilt (~> 1.3, >= 1.3.4)
    smusher (0.4.9)
      httpclient (>= 2.2)
      json
      rake
    spring (1.1.3)
    sprockets (2.11.0)
      hike (~> 1.2)
      multi_json (~> 1.0)
      rack (~> 1.0)
      tilt (~> 1.1, != 1.3.0)
    sprockets-rails (2.2.1)
      actionpack (>= 3.0)
      activesupport (>= 3.0)
      sprockets (>= 2.8, < 4.0)
    stringex (2.5.2)
    table_print (1.5.3)
    thor (0.19.1)
    thread_safe (0.3.4)
    tilt (1.4.1)
    timecop (0.7.1)
    timers (1.1.0)
    turbolinks (2.2.2)
      coffee-rails
    tzinfo (1.2.2)
      thread_safe (~> 0.1)
    uglifier (2.5.3)
      execjs (>= 0.3.0)
      json (>= 1.8.0)
    uuidtools (2.1.5)
    warden (1.2.3)
      rack (>= 1.0)
    xpath (2.0.0)
      nokogiri (~> 1.3)
    yui-compressor (0.12.0)

PLATFORMS
  ruby

DEPENDENCIES
  angularjs-rails
  annotate!
  aws-sdk (~> 1.5.7)
  better_errors
  binding_of_caller
  bootstrap-kaminari-views
  bootstrap-sass (~> 3.3.0)
  bootstrap-wysihtml5-rails
  browser-timezone-rails
  byebug
  callback_skipper
  capybara
  capybara-screenshot
  capybara-webkit!
  coffee-rails
  compass-rails
  database_cleaner
  devise (~> 3.0.0)
  devise_account_expireable
  draper (~> 1.3)
  exception_handler
  factory_girl_rails
  font-awesome-rails
  font_assets
  haml-rails
  heroku-deflater
  hirb
  jquery-rails
  jquery-turbolinks
  json
  judge
  judge-simple_form!
  kaminari
  launchy
  le
  meta_request
  mysql2
  newrelic_rpm
  nokogiri
  oj
  oj_mimic_json
  paperclip (~> 4.2)
  pdfcrowd
  premailer-rails
  puma
  pundit
  quiet_assets
  rack-cors
  rack-timeout
  rails (~> 4.1.0)
  rails_admin!
  rails_admin_pundit!
  rb-readline
  redis-objects
  redis-rails
  rspec-rails
  ruby-progressbar
  sass-rails
  sidekiq
  sidekiq-cron (~> 0.2.0)
  simple_form!
  sinatra (>= 1.3.0)
  smusher
  spring
  stringex
  table_print
  timecop
  turbolinks
  uglifier
  yui-compressor