caocao12

"544"
=> Booting WEBrick...
E:/AptanaSpace/mybook/config/environment.rb:44: undefined method `time_zone=' for #<Rails::Configuration:0x2f5d168> (NoMethodError)
from d:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/initializer.rb:47:in `run'
from E:/AptanaSpace/mybook/config/environment.rb:13
from d:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
from d:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
from d:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require'
from d:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in `new_constants_in'
from d:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require'
from d:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/webrick.rb:59
... 7 levels...
from d:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
from ./script/server:3
from -e:2:in `load'
from -e:2

提示没有找到`time_zone=' 方法，我刚接触RUBY，对于上面错误信息无从下手，所以请各位有经验者帮忙解决一下，谢谢。