Ruby on Rails

Hello,

first try RVM, it can solve this kind of problems easily.
Plase write here your ruby, gem, rails -v versions, and output of gem
list command. What OS you use?

You can check simply 'gem' command gives you how you can use this
command, and also 'gem -h' or 'gem --help' If you have multiple
versions of same gems, maybe you can try gem cleanup and the name of
the gem.

Write us more details, so we can help you easier.
Good luck,
Zoltán

On nov. 29, 20:01, John <joben...@gmail.com> wrote:
> I've seen people post similar issues at various places, but I have yet
> to find an explanation on how to resolve this issue. I'm a new Rails
> user, so I need a little adult supervision please.
>
> I carelessly ran a "gem update" this morning and it updating a couple
> gems. Since that point, I've been unable to use rails. When I attempt
> to, I get the error:
> "/Library/Ruby/Site/1.8/rubygems.rb:779:in 'report_activate_error':
> RubyGem version error: builder(3.0.0 not ~> 2.1.2) (Gem::LoadError)"
>
> There were a few additional lines. If those would be helpful in
> troubleshooting this error, please let me know.
>
> As far as I can tell, this is a dependency issue. I tried uninstalling
> the builder gem and reinstalling it. That didn't fix the error. I
> tried uninstalling the rails gem and it's dependencies and reinstalled
> them all. That also didn't fix it. I'm at a loss for what to do.
>
> Your suggestions and guidance are appreciated.

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