Rails not installed on CentOS 5.2



I have installed CentOS 5.2 on my PC. I have build in Ruby 1.8.5 and
Ruby-devel. I have downloaded rubygems-1.3.1.tgz package and installed
it. Now I am trying to install Rails by following command:

gem install rails

But it gives me the following error:

ERROR: While executing gem … (Zlib::DataError)
incorrect header check

zlib and zlib-devel are already installed on my pc. I can install
other gems like hpricot etc. But still I cannot install rails.

Can somebody please guide me what I am missing?

Thank you,


Can anybody give me the solution???


Can anyone please give me the solution? I am newer to Rails!