Installing Ruby on Rails Application with Ruby Enterprise Edition 1.8.7

Question

I want to install one Application on my CentOS 5.5 which requires Ruby Enterprise Edition 1.8.7 and Rails 2.3.5.

I have installed REE from rubyenterpriseedition.com . To install my application I need to do some settings. In my .bash_profile I should change PATH = $PATH:$HOME/bin to

PATH=/opt/ruby-enterprise-1.8.7-2012.02/bin:$PATH:$HOME/bin

then to reload

source .bash_profile

To check whether changes have been reflected, we must run which gem. This has to output output:

/opt/ruby-enterprise-1.8.7-2012.02/bin/gem

But Unfortunately it is outputting

[root@local ~]# which gem
/usr/bin/which: no gem in (/opt/ruby-enterprise-1.8.7-2012.02/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/home/college/bin:/root/bin)

After that when i do

[root@local ~]# gem update --system
bash: gem: command not found

I am getting above error. But Look at the Actual PATH Below...

[root@local college]# echo $PATH
/usr/kerberos/sbin:/opt/ruby-enterprise-1.8.7-2012.02/bin:/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/home/college/bin:/root/bin:/opt/ruby-enterprise-1.8.7-2012.02/bin

Please help me out to install this application on my CentOS.

Answer 1

I think you are mixing up versions. I see both 2011.03 and 2012.02 mentioned. Please check which version you actually installed and make sure your PATH variable has this version as well.