Troubleshooting Middleman Sitemap & Config

Gemfile

source 'https://rubygems.org'

gem 'susy'

gem 'middleman', '~> 3.1.5'
gem 'middleman-smusher'
gem 'middleman-core', '~> 3.1.5'

gem 'middleman-livereload', '~> 3.1.0'

gem 'bootstrap-sass', :git => 'git://github.com/thomas-mcdonald/bootstrap-sass.git', :branch => '3'

gem 'coffee_cup'

Gemfile.lock

GIT
  remote: git://github.com/thomas-mcdonald/bootstrap-sass.git
  revision: b12585b274accce26ff2f7fd65812c047849bfce
  branch: 3
  specs:
    bootstrap-sass (3.0.0.0)
      sass (~> 3.2)

GEM
  remote: https://rubygems.org/
  specs:
    activesupport (3.2.14)
      i18n (~> 0.6, >= 0.6.4)
      multi_json (~> 1.0)
    chunky_png (1.2.8)
    coffee-script (2.2.0)
      coffee-script-source
      execjs
    coffee-script-source (1.6.3)
    coffee_cup (0.0.4)
    compass (0.12.2)
      chunky_png (~> 1.2)
      fssm (>= 0.2.7)
      sass (~> 3.1)
    em-websocket (0.5.0)
      eventmachine (>= 0.12.9)
      http_parser.rb (~> 0.5.3)
    eventmachine (1.0.3)
    execjs (1.4.0)
      multi_json (~> 1.0)
    ffi (1.9.0)
    fssm (0.2.10)
    haml (4.0.3)
      tilt
    hike (1.2.3)
    http_parser.rb (0.5.3)
    httpclient (2.3.4.1)
    i18n (0.6.5)
    json (1.8.0)
    kramdown (1.1.0)
    listen (1.2.3)
      rb-fsevent (>= 0.9.3)
      rb-inotify (>= 0.9)
      rb-kqueue (>= 0.2)
    middleman (3.1.5)
      coffee-script (~> 2.2.0)
      compass (>= 0.12.2)
      execjs (~> 1.4.0)
      haml (>= 3.1.6)
      kramdown (~> 1.1.0)
      middleman-core (= 3.1.5)
      middleman-more (= 3.1.5)
      middleman-sprockets (>= 3.1.2)
      sass (>= 3.1.20)
      uglifier (~> 2.1.0)
    middleman-core (3.1.5)
      activesupport (~> 3.2.6)
      bundler (~> 1.1)
      i18n (~> 0.6.1)
      listen (~> 1.2.2)
      rack (>= 1.4.5)
      rack-test (~> 0.6.1)
      thor (>= 0.15.2, < 2.0)
      tilt (~> 1.3.6)
    middleman-livereload (3.1.0)
      em-websocket (>= 0.2.0)
      middleman-core (>= 3.0.2)
      multi_json (~> 1.0)
      rack-livereload
    middleman-more (3.1.5)
    middleman-smusher (3.0.0)
      middleman (>= 3.0.0)
      smusher (~> 0.4.9)
    middleman-sprockets (3.1.4)
      middleman-core (>= 3.0.14)
      middleman-more (>= 3.0.14)
      sprockets (~> 2.1)
      sprockets-helpers (~> 1.0.0)
      sprockets-sass (~> 1.0.0)
    multi_json (1.8.0)
    rack (1.5.2)
    rack-livereload (0.3.15)
      rack
    rack-test (0.6.2)
      rack (>= 1.0)
    rake (10.1.0)
    rb-fsevent (0.9.3)
    rb-inotify (0.9.2)
      ffi (>= 0.5.0)
    rb-kqueue (0.2.0)
      ffi (>= 0.5.0)
    sass (3.2.10)
    smusher (0.4.9)
      httpclient (>= 2.2)
      json
      rake
    sprockets (2.10.0)
      hike (~> 1.2)
      multi_json (~> 1.0)
      rack (~> 1.0)
      tilt (~> 1.1, != 1.3.0)
    sprockets-helpers (1.0.1)
      sprockets (~> 2.0)
    sprockets-sass (1.0.1)
      sprockets (~> 2.0)
      tilt (~> 1.1)
    susy (1.0.8)
      compass (>= 0.12.2)
      sass (>= 3.2.0)
    thor (0.18.1)
    tilt (1.3.7)
    uglifier (2.1.2)
      execjs (>= 0.3.0)
      multi_json (~> 1.0, >= 1.0.2)

PLATFORMS
  ruby

DEPENDENCIES
  bootstrap-sass!
  coffee_cup
  middleman (~> 3.1.5)
  middleman-core (~> 3.1.5)
  middleman-livereload (~> 3.1.0)
  middleman-smusher
  susy