diff --git a/bin/jasmine-headless-webkit b/bin/jasmine-headless-webkit
index 1b9b28a..98c1998 100755
--- a/bin/jasmine-headless-webkit
+++ b/bin/jasmine-headless-webkit
@@ -1,19 +1,25 @@
 #!/usr/bin/env ruby
 
 require 'rubygems'
+require 'rainbow'
 
 def gem_dir
   File.expand_path('../..', __FILE__)
 end
 
 $:.unshift(File.join(gem_dir, 'lib'))
+require 'jasmine/headless/errors'
+require 'jasmine/headless/runner'
+require 'jasmine/headless/options'
 
-puts "Running Jasmine specs..."
-
-require 'jasmine/headless/cli'
 begin
-  exit Jasmine::Headless::CLI.run
+  puts "Running Jasmine specs...".color(:white)
+  exit Jasmine::Headless::Runner.run(Jasmine::Headless::Options.from_command_line)
+rescue CoffeeScript::CompilationError
+  exit 1
 rescue StandardError => e
+  $stderr.puts "[%s] %s (%s)" % [ "jasmine-headless-webkit".color(:red), e.message.color(:white), e.class.name.color(:yellow) ]
+  $stderr.puts e.backtrace.collect { |line| "  #{line}" }.join("\n")
   exit 1
 end
 
diff --git a/lib/jasmine/files_list.rb b/lib/jasmine/files_list.rb
index 11cc53b..ce97cef 100644
--- a/lib/jasmine/files_list.rb
+++ b/lib/jasmine/files_list.rb
@@ -1,4 +1,13 @@
-require 'jasmine'
+begin
+  require 'jasmine'
+rescue NameError => e
+  if e.message['ActiveSupport::Concern']
+    $stderr.puts "[%s] %s (%s)" % [ "jasmine-gem".color(:red), e.message.color(:white), e.class.name.color(:yellow) ]
+    $stderr.puts "#{'Jasmine'.color(:red)} believes Rails 3 is available. Try using #{'Bundler'.color(:green)} and running via #{'bundle exec'.color(:green)}."
+  else
+    raise e
+  end
+end
 
 module Jasmine
   class FilesList
diff --git a/lib/jasmine/headless/cli.rb b/lib/jasmine/headless/cli.rb
deleted file mode 100644
index 252b323..0000000
--- a/lib/jasmine/headless/cli.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-require 'jasmine/headless/runner'
-require 'jasmine/headless/options'
-require 'getoptlong'
-
-module Jasmine
-  module Headless
-    class CLI
-      def self.run
-        Runner.run(Options.from_command_line)
-      rescue NoRunnerError
-        puts "The Qt WebKit widget is not compiled! Try re-installing this gem."
-        1
-      end
-    end
-  end
-end
-
diff --git a/lib/jasmine/headless/errors.rb b/lib/jasmine/headless/errors.rb
index 8f6edb7..fa7e603 100644
--- a/lib/jasmine/headless/errors.rb
+++ b/lib/jasmine/headless/errors.rb
@@ -1,6 +1,9 @@
 module Jasmine
   module Headless
     class NoRunnerError < StandardError
+      def message
+        "The jasmine-headless-webkit specrunner (jasmine-webkit-specrunner) could not be found! Try reinstalling the gem."
+      end
     end
   end
 end
diff --git a/lib/jasmine/headless/options.rb b/lib/jasmine/headless/options.rb
index e3d324b..51cf5cd 100644
--- a/lib/jasmine/headless/options.rb
+++ b/lib/jasmine/headless/options.rb
@@ -1,4 +1,5 @@
 require 'forwardable'
+require 'getoptlong'
 
 module Jasmine
   module Headless
diff --git a/spec/lib/jasmine/headless/cli_spec.rb b/spec/lib/jasmine/headless/cli_spec.rb
deleted file mode 100644
index 8b13789..0000000
--- a/spec/lib/jasmine/headless/cli_spec.rb
+++ /dev/null
@@ -1 +0,0 @@
-