Question

I try to install skylinecms but I have a problem with installing the gem.
The gem factory_girl asked me to use version> = 1.9.2 of Ruby

atmoner@atmoner:~/base_ror$ sudo gem install skylinecms
ERROR:  Error installing skylinecms:
    factory_girl requires Ruby version >= 1.9.2.

ruby -v

atmoner@atmoner:~/base_ror$ ruby -v
ruby 1.9.3p286 (2012-10-12 revision 37165) [x86_64-linux]

I have tried to change ruby version to 1.9.2

atmoner@atmoner:~/base_ror$ rvm use 1.9.2
Using /home/atmoner/.rvm/gems/ruby-1.9.2-p320

But still same problem

atmoner@atmoner:~/base_ror$ sudo gem install skylinecms
ERROR:  Error installing skylinecms:
    factory_girl requires Ruby version >= 1.9.2.

what’s the source of this problem?
you have an idea?

Answer 1

You shouldn’t use sudo with rvm, as it creates a new subshell with a completely new environment. See more about sudo and rvm here: RVM and ‘sudo’

Most likely your system ruby version is 1.8.7, and that is what is getting invoked when you run sudo gem install skylinecms. You can verify that with the following commands:

rvm use system
ruby -v

Try installing the skylinecms gem without sudo.

Best to use per-project gemsets as suggested in rvm best practices