Fixing: undefined method `require_gem' for main:Object (NoMethodError)
After upgrading to the newest version of rails (2.2.2) I was getting this error:
administrator@shuttle:~$ rails -v/usr/bin/rails:17: undefined method `require_gem' for main:Object (NoMethodError)
Anytime I called “rails” I would get this error and could not get past.
# Here is the fix
administrator@shuttle:~/$ sudo vim /usr/bin/rails
Look for anywhere in the file that calls "require_gem", I found it in only one spot:
require_gem 'rails', version
And change "require_gem" to just "gem" so:
gem 'rails', version
Save and when you run "rails -v" you should see this:
administrator@shuttle:~/$ rails -vRails 2.2.2
You should no longer get the error with running "rails"