config.breakpoint_server

Hi,   I am working in Ubuntu 7.0 recently i updated it to ubuntu 8.04 previously my applications going well.Now if i run the applications it is generating the following error "config.breakpoint_server has been deprecated and has no effect" please help me regarding this case.. I tried through the ruby-debug but while loading the application it is saying "505:Internal Error text type script/html" can any one help me? I tried to reinstall my rails.. While i am loading the gems the error is "invalid gem format for /usr/lib/ruby/gems/1.8/cache/activesupport-2.1.0.gem" I can't understand what to do?

got exactly the same problem here... i had to freez rails in vendor to get working :confused: