Ruby on Rails

ariv arasan wrote in post #945121:
> while i updating my rails version with command,
>
> gem install -v=2.3.8 rails
>
> i got,
>
> ERROR: While executing gem ... (Gem::FilePermissionError)
> You don't have write permissions into the /usr/lib/ruby/gems/1.8
> directory.
>
> how could i solve the problem?

Thanks for your help not it works.

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