Ruby on Rails

On 29 December 2010 13:40, Mark L. <lists@ruby-forum.com> wrote:
> ...hey Z, thanx for the reply. 'gem cleanup' does work, but when I try
> 'gem install rails' I get the zlib error below. I can't seem to install
> any gems due to the zlib problem. I looked into rvm, but I can't see to
> get that installed. I am using Fedora, so I used yum to install rvm, but
> can't seem to get that working either. rvm doesn't seem to be in my
> path, and I can find an executable for it in the .rvm folder. I'm going
> to continue working on this, and will post back when I finally figure it
> out. Thanx!

Did you make the changes to .bashrc (or whatever the equivalent in
Fedora) as described on the website after installing rvm? Until you
do that rvm is not available.

Colin

>
> [root@dhcp226-12 .rvm]# gem update rails
> ERROR:  Loading command: update (LoadError)
>    no such file to load -- zlib
> ERROR:  While executing gem ... (NameError)
>    uninitialized constant Gem::Commands::UpdateCommand
>
>
> Zoltan Gero wrote in post #971212:
>> Hi, not sure if I got it well:
>> so you do have Ruby1.9, Gem1.3.7 but only Rails version 2.3.5, now you
>> want to update, right? On Ubuntu try this:
>> "gem update rails"
>> If you have permission problems then "sudo gem update rails" except if
>> you have RVM installed, then don't use sudo when installing gem.
>> Then make a cleanup "gem cleanup"
>> Troubleshhot: "rails -v" should be 3<
>>
>> Someone told me he only could solve his Zlib problem with RVM, because
>> it has a package for it:
>> http://rvm.beginrescueend.com/packages/zlib/
>> I really recommend to use RVM, because you can prevent later problems
>> also.
>> Let me know if you have further problems, good luck,
>> Zoli
>
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