railstutorial.org の Web サイトに従って Ruby を学習しようとしています。自動テストの部分で Guard を実行していますが、エラーがスローされます。
C:\Users\Thomas\Documents\Development\teachmtg.com [master]> bundle exec guard
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/guard-1.8.1/lib/guard/dsl.rb:119:in `instance_eval': C:/Users/Thomas/Documents/Development/teachmtg.com/Guardfile:4: syntax error, unexpected ',' (SyntaxError)
guard 'rspec', :version => 2 do, :all_after_pass => false do
^
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/guard-1.8.1/lib/guard/dsl.rb:119:in `instance_eval_guardfile'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/guard-1.8.1/lib/guard/dsl.rb:74:in `evaluate_guardfile'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/guard-1.8.1/lib/guard.rb:147:in `setup_from_guardfile'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/guard-1.8.1/lib/guard.rb:63:in `setup'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/guard-1.8.1/lib/guard.rb:188:in `start'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/guard-1.8.1/lib/guard/cli.rb:110:in `start'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/lib/thor/command.rb:27:in `run'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/lib/thor/invocation.rb:120:in `invoke_command'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/lib/thor.rb:363:in `dispatch'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/lib/thor/base.rb:439:in `start'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/guard-1.8.1/bin/guard:6:in `<top (required)>'
from C:/RailsInstaller/Ruby1.9.3/bin/guard:23:in `load'
from C:/RailsInstaller/Ruby1.9.3/bin/guard:23:in `<main>'
私はRubyとRailsにまったく慣れていないので、どこを見ればいいのか、何を探せばいいのかなどわかりません。
いくつかのヒントと指針を教えてもらえますか?
ありがとう ！