gistfile1.txt

Error during failsafe response: "\xE4" from ASCII-8BIT to UTF-8
  /Users/ihower/github/rails/activesupport/lib/active_support/buffered_logger.rb:104:in `write'
  /Users/ihower/github/rails/activesupport/lib/active_support/buffered_logger.rb:104:in `block in flush'
  <internal:prelude>:10:in `synchronize'
  /Users/ihower/github/rails/activesupport/lib/active_support/buffered_logger.rb:101:in `flush'
  /Users/ihower/github/rails/activesupport/lib/active_support/buffered_logger.rb:121:in `auto_flush'
  /Users/ihower/github/rails/activesupport/lib/active_support/buffered_logger.rb:66:in `add'
  /Users/ihower/github/rails/activesupport/lib/active_support/buffered_logger.rb:77:in `fatal'
  /Users/ihower/github/rails/actionpack/lib/action_dispatch/middleware/show_exceptions.rb:139:in `block in log_error'
  /Users/ihower/github/rails/activesupport/lib/active_support/deprecation/reporting.rb:15:in `silence'
  /Users/ihower/github/rails/actionpack/lib/action_dispatch/middleware/show_exceptions.rb:135:in `log_error'
  /Users/ihower/github/rails/actionpack/lib/action_dispatch/middleware/show_exceptions.rb:66:in `render_exception'
  /Users/ihower/github/rails/actionpack/lib/action_dispatch/middleware/show_exceptions.rb:61:in `rescue in call'
  /Users/ihower/github/rails/actionpack/lib/action_dispatch/middleware/show_exceptions.rb:48:in `call'
  /Users/ihower/github/rails/railties/lib/rails/rack/logger.rb:14:in `call'
  /Users/ihower/.rvm/gems/ruby-1.9.2-preview3/gems/rack-1.1.0/lib/rack/runtime.rb:17:in `call'
  /Users/ihower/github/rails/activesupport/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
  /Users/ihower/.rvm/gems/ruby-1.9.2-preview3/gems/rack-1.1.0/lib/rack/lock.rb:11:in `block in call'
  <internal:prelude>:10:in `synchronize'
  /Users/ihower/.rvm/gems/ruby-1.9.2-preview3/gems/rack-1.1.0/lib/rack/lock.rb:11:in `call'
  /Users/ihower/github/rails/actionpack/lib/action_dispatch/middleware/static.rb:30:in `call'
  /Users/ihower/github/rails/railties/lib/rails/application.rb:145:in `call'
  /Users/ihower/github/rails/railties/lib/rails/application.rb:81:in `method_missing'
  /Users/ihower/github/rails/railties/lib/rails/rack/log_tailer.rb:15:in `call'
  /Users/ihower/.rvm/gems/ruby-1.9.2-preview3/gems/rack-1.1.0/lib/rack/content_length.rb:13:in `call'
  /Users/ihower/.rvm/gems/ruby-1.9.2-preview3/gems/rack-1.1.0/lib/rack/handler/webrick.rb:48:in `service'
  /Users/ihower/.rvm/rubies/ruby-1.9.2-preview3/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
  /Users/ihower/.rvm/rubies/ruby-1.9.2-preview3/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
  /Users/ihower/.rvm/rubies/ruby-1.9.2-preview3/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'
[2010-06-10 02:43:08] ERROR Encoding::UndefinedConversionError: "\xE4" from ASCII-8BIT to UTF-8
        /Users/ihower/github/rails/activesupport/lib/active_support/buffered_logger.rb:104:in `write'
        /Users/ihower/github/rails/activesupport/lib/active_support/buffered_logger.rb:104:in `block in flush'
        <internal:prelude>:10:in `synchronize'
        /Users/ihower/github/rails/activesupport/lib/active_support/buffered_logger.rb:101:in `flush'
        /Users/ihower/github/rails/railties/lib/rails/log_subscriber.rb:84:in `each'
        /Users/ihower/github/rails/railties/lib/rails/log_subscriber.rb:84:in `flush_all!'
        /Users/ihower/github/rails/railties/lib/rails/rack/logger.rb:30:in `after_dispatch'
        /Users/ihower/github/rails/railties/lib/rails/rack/logger.rb:16:in `call'
        /Users/ihower/.rvm/gems/ruby-1.9.2-preview3/gems/rack-1.1.0/lib/rack/runtime.rb:17:in `call'
        /Users/ihower/github/rails/activesupport/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
        /Users/ihower/.rvm/gems/ruby-1.9.2-preview3/gems/rack-1.1.0/lib/rack/lock.rb:11:in `block in call'
        <internal:prelude>:10:in `synchronize'
        /Users/ihower/.rvm/gems/ruby-1.9.2-preview3/gems/rack-1.1.0/lib/rack/lock.rb:11:in `call'
        /Users/ihower/github/rails/actionpack/lib/action_dispatch/middleware/static.rb:30:in `call'
        /Users/ihower/github/rails/railties/lib/rails/application.rb:145:in `call'
        /Users/ihower/github/rails/railties/lib/rails/application.rb:81:in `method_missing'
        /Users/ihower/github/rails/railties/lib/rails/rack/log_tailer.rb:15:in `call'
        /Users/ihower/.rvm/gems/ruby-1.9.2-preview3/gems/rack-1.1.0/lib/rack/content_length.rb:13:in `call'
        /Users/ihower/.rvm/gems/ruby-1.9.2-preview3/gems/rack-1.1.0/lib/rack/handler/webrick.rb:48:in `service'
        /Users/ihower/.rvm/rubies/ruby-1.9.2-preview3/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
        /Users/ihower/.rvm/rubies/ruby-1.9.2-preview3/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
        /Users/ihower/.rvm/rubies/ruby-1.9.2-preview3/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'

Any clue on that error?

See https://rails.lighthouseapp.com/projects/8994/tickets/4807-error-encodingundefinedconversionerror-xc3-from-ascii-8bit-to-utf-8#ticket-4807-3

thanks