Can i use 2 version of rails with mod_fcgid

rubyonrails-talk
1

I installed rails version 1.1.6 and 1.2.2 1.1.6 work fine but 1.2.2 is error, RoutingError

I use debian sarge, ruby-1.8.4, apache2, mod_fcgid

any suggestion please, T_T