I can't run it.

[benjaminharel]

/usr/lib/ruby/gems/1.8/gems/mongoid-mapreduce-0.1.4/lib/mongoid/mapreduce.rb:4:in `require': /usr/lib/ruby/gems/1.8/gems/mongoid-mapreduce-0.1.4/lib/mongoid/mapreduce/reducer.rb:68: odd number list for Hash (SyntaxError)

....map, formula.reduce, { query: @selector, out: "#map_reduce"...
^
/usr/lib/ruby/gems/1.8/gems/mongoid-mapreduce-0.1.4/lib/mongoid/mapreduce/reducer.rb:68: syntax error, unexpected ':', expecting '}'
....map, formula.reduce, { query: @selector, out: "#map_reduce"...
^
/usr/lib/ruby/gems/1.8/gems/mongoid-mapreduce-0.1.4/lib/mongoid/mapreduce/reducer.rb:68: syntax error, unexpected ':', expecting '='
...duce, { query: @selector, out: "#map_reduce" } ).find.to_a
^
/usr/lib/ruby/gems/1.8/gems/mongoid-mapreduce-0.1.4/lib/mongoid/mapreduce/reducer.rb:68: syntax error, unexpected '}', expecting kEND
...selector, out: "#map_reduce" } ).find.to_a
^