Hi mate, I can only advise you to update Ruby to 1.9.2 and rails to 3.0.9. You should have a look into rvm updater. You may want to try bundle install command first. On 4 Jul 2011 07:20, "Rock Liu" <[email protected]> wrote: > Hi, when i use mongoid to get the count of model named "User", I met a > error : > > irb(main):001:0> User.count > > ArgumentError: wrong number of arguments (1 for 0) > from /var/lib/gems/1.8/gems/mongoid-2.0.2/lib/mongoid/ > cursor.rb:37:in `count' > from /var/lib/gems/1.8/gems/mongoid-2.0.2/lib/mongoid/ > cursor.rb:37:in `send' > from /var/lib/gems/1.8/gems/mongoid-2.0.2/lib/mongoid/ > cursor.rb:37:in `count' > from /var/lib/gems/1.8/gems/mongoid-2.0.2/lib/mongoid/ > collections/retry.rb:29:in `retry_on_connection_failure' > from /var/lib/gems/1.8/gems/mongoid-2.0.2/lib/mongoid/ > cursor.rb:36:in `count' > from /var/lib/gems/1.8/gems/mongoid-2.0.2/lib/mongoid/contexts/ > mongo.rb:73:in `count' > from /var/lib/gems/1.8/gems/mongoid-2.0.2/lib/mongoid/ > criteria.rb:48:in `__send__' > from /var/lib/gems/1.8/gems/mongoid-2.0.2/lib/mongoid/ > criteria.rb:48:in `count' > from /var/lib/gems/1.8/gems/mongoid-2.0.2/lib/mongoid/ > finders.rb:34:in `count' > from (irb):2 > > version of mongoid is "2.0.2" > version of ruby is "1.8.7" > version of rails is "3.0.3" > > Any suggestions/help? > > Thanks! > > -- > You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to [email protected]. > For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en. >
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