# Rails version error - related to PATH?

**URL:** <https://www.ruby-forum.com/t/rails-version-error-related-to-path/121607>\
**Category:** Rails\
**Created:** [November 29, 2007, 8:16am UTC](https://www.ruby-forum.com/t/rails-version-error-related-to-path/121607 "2007-11-29T08:16:53Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![n1c](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/3ec8ea/32.png) [@n1c](https://www.ruby-forum.com/u/n1c)\
**Post date:** [November 29, 2007, 8:16am UTC](https://www.ruby-forum.com/t/rails-version-error-related-to-path/121607/1 "2007-11-29T08:16:53Z")

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Hi all

I followed these instructions

> **[Dan Benjamin](https://danbenjamin.com)**
>
> Dan Benjamin's personal website.

some a few weeks ago to get Rails up and running on my Mac. No problems.

Then I had some wierd issues to my PATH being forgotten about a week  
ago, which I managed to resolve (don’t remember the exact steps).  
Yesterday my Mac crashed ☹ and it seemed to lose some path info. One of  
the results (I’m assuming) is that an app that used to run just fine,  
now gives this error when I start Mongrel:

Exiting  
/usr/local/lib/ruby/site\_ruby/1.8/rubygems.rb:246:in `activate’: can’t  
activate rails (= 1.2.6), already activated rails-1.2.3]  
(Gem::Exception)

This has coincided with my path issue, so I’m associating the two  
events. My path is currently set to:

/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:/usr/bin:/usr/sbin:/bin:/sbin

Any suggestions? Is this a path issue?

Thx  
Nick

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<div class="post-metadata">

**Author:** ![n1c](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/3ec8ea/32.png) [@n1c](https://www.ruby-forum.com/u/n1c)\
**Post date:** [November 29, 2007, 8:43am UTC](https://www.ruby-forum.com/t/rails-version-error-related-to-path/121607/2 "2007-11-29T08:43:06Z")

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Sounds like what I went through about a year or two ago. I had  
installed Ruby with ports or something, then, later when a new  
release was announced, I installed that by building from source.

Sorry, don’t remember which one I did first, but I remember seeing  
strange PATH issues every time I rebooted. I had to hunt down and  
kill all the old executables (ruby, rake, gem, etc) that were being  
added to my path and that seemed to clear it up.

Hope that helps.

–  
James M.

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<div class="post-metadata">

**Author:** ![n1c](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/3ec8ea/32.png) [@n1c](https://www.ruby-forum.com/u/n1c)\
**Post date:** [November 29, 2007, 10:59am UTC](https://www.ruby-forum.com/t/rails-version-error-related-to-path/121607/3 "2007-11-29T10:59:51Z")

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Talk about cryptic errors. The problem was a missing gem.

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<div class="post-metadata">

**Author:** ![n1c](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/3ec8ea/32.png) [@n1c](https://www.ruby-forum.com/u/n1c)\
**Post date:** [December 7, 2007, 11:12am UTC](https://www.ruby-forum.com/t/rails-version-error-related-to-path/121607/4 "2007-12-07T11:12:47Z")

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Arfon S. wrote:

> Nick C. wrote:
> 
> > Talk about cryptic errors. The problem was a missing gem.
> 
> Which gem?!!

I managed to fix it by installing the rconv gem.

Hope this helps.

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<div class="post-metadata">

**Author:** ![n1c](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/3ec8ea/32.png) [@n1c](https://www.ruby-forum.com/u/n1c)\
**Post date:** [December 7, 2007, 10:19am UTC](https://www.ruby-forum.com/t/rails-version-error-related-to-path/121607/5 "2007-12-07T10:19:21Z")

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Nick C. wrote:

> Talk about cryptic errors. The problem was a missing gem.

Which gem?!!

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<div class="post-metadata">

**Author:** ![n1c](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/3ec8ea/32.png) [@n1c](https://www.ruby-forum.com/u/n1c)\
**Post date:** [December 9, 2007, 10:37am UTC](https://www.ruby-forum.com/t/rails-version-error-related-to-path/121607/6 "2007-12-09T10:37:42Z")

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> > Which gem?!!

rflickr was missing for me.