From: Peter Hickman Date: 2012-09-25T17:55:50+09:00 Subject: Re: inject problem Well the simplest error is the count.inject{| ... |} part. The stuff that goes between the | ... | are variable declarations. For example this is sum for an array array = [1,2,1,1] array.inject(0){|x, y| x + y} => 5 note the variable 'x' and 'y' are between the | ... | and the action 'x + y' takes place after. inject is expecting two variable to be declared so that is another error.