Hi all, I''m trying to install substruct on my local server on mac os x snow leopard. I create the database on mysql, update all gems, update rails...but when I try to rake db:create I receive: MacBook-Pro-di-Orazio:substruct_rel_1-3-1 Orazio$ rake db:create --trace rake aborted! uninitialized constant ActiveSupport::Dependencies::Mutex /Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/ext/module.rb:36:in `const_missing'' /Users/Orazio/Desktop/substruct_rel_1-3-1/vendor/rails/activesupport/lib/active_support/dependencies.rb:55 /Library/Ruby/Site/1.8/rubygems/custom_require.rb:36:in `gem_original_require'' /Library/Ruby/Site/1.8/rubygems/custom_require.rb:36:in `require'' /Users/Orazio/Desktop/substruct_rel_1-3-1/vendor/rails/activesupport/lib/active_support.rb:57 /Library/Ruby/Site/1.8/rubygems/custom_require.rb:36:in `gem_original_require'' /Library/Ruby/Site/1.8/rubygems/custom_require.rb:36:in `require'' /Users/Orazio/Desktop/substruct_rel_1-3-1/vendor/rails/railties/lib/tasks/misc.rake:18 /Users/Orazio/Desktop/substruct_rel_1-3-1/vendor/rails/railties/lib/tasks/rails.rb:4:in `load'' /Users/Orazio/Desktop/substruct_rel_1-3-1/vendor/rails/railties/lib/tasks/rails.rb:4 /Users/Orazio/Desktop/substruct_rel_1-3-1/vendor/rails/railties/lib/tasks/rails.rb:4:in `each'' /Users/Orazio/Desktop/substruct_rel_1-3-1/vendor/rails/railties/lib/tasks/rails.rb:4 /Library/Ruby/Site/1.8/rubygems/custom_require.rb:36:in `gem_original_require'' /Library/Ruby/Site/1.8/rubygems/custom_require.rb:36:in `require'' /Users/Orazio/Desktop/substruct_rel_1-3-1/Rakefile:12 /Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/rake_module.rb:25:in `load'' /Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/rake_module.rb:25:in `load_rakefile'' /Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:495:in `raw_load_rakefile'' /Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:78:in `load_rakefile'' /Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:129:in `standard_exception_handling'' /Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:77:in `load_rakefile'' /Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:61:in `run'' /Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:129:in `standard_exception_handling'' /Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:59:in `run'' /Library/Ruby/Gems/1.8/gems/rake-0.9.2/bin/rake:32 /usr/bin/rake:19:in `load'' /usr/bin/rake:19 MacBook-Pro-di-Orazio:substruct_rel_1-3-1 Orazio$ Could anyone help me please? Thank you so much! -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/glDwJ22EYtcJ. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.