Ironruby core - Jan 2010 - IronRuby + Scaffold - Fails because of Action Mailer?

Aim: Use IronRubyOnRails with SQL Server to generate a table for me.
After running scaffold, I received the following error message:

What am I missing?

Thanks

Ben

Error:

pretty:IronRubyOnRails Ben$ ir script/generate scaffold post
title:string body:text published:boolean
/Users/Ben/Library/ironruby-0.9.3/lib/ironruby/gems/1.8/gems/actionmailer-2.3.5/lib/action_mailer/quoting.rb:22:
parsing "[\000-\011\013\014\016-\037\177-\377]" - [55-51] range in
reverse order.
Parameter name: [\000-\011\013\014\016-\037\177-\377] (SyntaxError)
	from
/Users/Ben/Library/ironruby-0.9.3/lib/ironruby/gems/1.8/gems/actionmailer-2.3.5/lib/action_mailer/base.rb:248
	from
/Users/Ben/Library/ironruby-0.9.3/lib/ironruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:510:in
`initialize_framework_logging''
	from :0:in `const_get''
	from
/Users/Ben/Library/ironruby-0.9.3/lib/ironruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:509:in
`initialize_framework_logging''
	from
/Users/Ben/Library/ironruby-0.9.3/lib/ironruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:147:in
`process''
	from
/Users/Ben/Library/ironruby-0.9.3/lib/ironruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in
`run''
	from :0:in `each''
	from mscorlib:0:in `CallSite.Target''
	from /Users/Ben/SourceControl/IronRubyOnRails/config/environment.rb:9
	from
/Users/Ben/Library/ironruby-0.9.3/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require''
	from :0:in `__send__''
	from
/Users/Ben/Library/ironruby-0.9.3/lib/ironruby/gems/1.8/gems/rails-2.3.5/lib/commands/generate.rb:1
	from
/Users/Ben/Library/ironruby-0.9.3/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
`require''
	from script/generate:3
	from :0:in `require''
	from :0:in `require''