# Updated rails now missing rails gem **URL:** \ **Category:** Rails\ **Created:** [January 26, 2010, 7:46am UTC](https://www.ruby-forum.com/t/updated-rails-now-missing-rails-gem/182294 "2010-01-26T07:46:35Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![morgan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/0ea827/32.png) [@morgan](https://www.ruby-forum.com/u/morgan)\ **Post date:** [January 26, 2010, 7:46am UTC](https://www.ruby-forum.com/t/updated-rails-now-missing-rails-gem/182294/1 "2010-01-26T07:46:35Z")
So i updated rails and this is now what i’m getting. i tried reinstalling rails and it didn’t help. it’s installed. this is driving me nuts. i’m at rails 2.3.5 and ruby 1.8.7 Missing the Rails gem. Please `gem install -v= rails`, update your RAILS\_GEM\_VERSION setting in config/environment.rb for the Rails version you do have installed, or comment out RAILS\_GEM\_VERSION to use the latest version installed. ---
**Author:** ![morgan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/0ea827/32.png) [@morgan](https://www.ruby-forum.com/u/morgan)\ **Post date:** [January 26, 2010, 8:23am UTC](https://www.ruby-forum.com/t/updated-rails-now-missing-rails-gem/182294/2 "2010-01-26T08:23:13Z")
Morgan M. wrote: > So i updated rails and this is now what i’m getting. > i tried reinstalling rails and it didn’t help. it’s installed. > this is driving me nuts. > > i’m at rails 2.3.5 and ruby 1.8.7 > > Missing the Rails gem. Please `gem install -v= rails`, update your > RAILS\_GEM\_VERSION setting in config/environment.rb for the Rails version > you do have installed, or comment out RAILS\_GEM\_VERSION to use the > latest version installed. ok. so mongrel can start a server with no problems but thin takes a dump. slowly making sense of this. ---
**Author:** ![morgan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/0ea827/32.png) [@morgan](https://www.ruby-forum.com/u/morgan)\ **Post date:** [January 26, 2010, 8:26am UTC](https://www.ruby-forum.com/t/updated-rails-now-missing-rails-gem/182294/3 "2010-01-26T08:26:47Z")
Morgan M. wrote: > Morgan M. wrote: > > > So i updated rails and this is now what i’m getting. > > i tried reinstalling rails and it didn’t help. it’s installed. > > this is driving me nuts. > > > > i’m at rails 2.3.5 and ruby 1.8.7 > > > > Missing the Rails gem. Please `gem install -v= rails`, update your > > RAILS\_GEM\_VERSION setting in config/environment.rb for the Rails version > > you do have installed, or comment out RAILS\_GEM\_VERSION to use the > > latest version installed. > > ok. so mongrel can start a server with no problems but thin takes a > dump. > slowly making sense of this. and figured it out. thin can’t cope with rack 1.1.0. uninstalled the rack 1.1.0 gem and all is well again. ---
**Author:** ![morgan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/0ea827/32.png) [@morgan](https://www.ruby-forum.com/u/morgan)\ **Post date:** [February 16, 2010, 7:51pm UTC](https://www.ruby-forum.com/t/updated-rails-now-missing-rails-gem/182294/4 "2010-02-16T19:51:11Z")
Had the same problem. Thank you so much. Mickael. > and figured it out. > > thin can’t cope with rack 1.1.0. uninstalled the rack 1.1.0 gem and all > is well again. ---
**Author:** ![morgan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/0ea827/32.png) [@morgan](https://www.ruby-forum.com/u/morgan)\ **Post date:** [March 17, 2010, 10:12pm UTC](https://www.ruby-forum.com/t/updated-rails-now-missing-rails-gem/182294/5 "2010-03-17T22:12:43Z")
Yup just wasted a good hour cursing monit and env variables. This was the problem. Rack 1.0.1 works fine with thin so far. ---
**Author:** ![morgan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/0ea827/32.png) [@morgan](https://www.ruby-forum.com/u/morgan)\ **Post date:** [April 16, 2010, 5:19am UTC](https://www.ruby-forum.com/t/updated-rails-now-missing-rails-gem/182294/6 "2010-04-16T05:19:01Z")
Morgan M. wrote: > Missing the Rails gem. Please `gem install -v= rails`, update your > RAILS\_GEM\_VERSION setting in config/environment.rb for the Rails version > you do have installed, or comment out RAILS\_GEM\_VERSION to use the > latest version installed. Make sure you don’t have gems installed in different places. We were getting this when run from rc.local because a couple gems had gotten installed in a user directory (~/.gem) instead of the system path. I wish gem wouldn’t install in a home directory unless you specifically told it to do so. ---
**Author:** ![morgan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/0ea827/32.png) [@morgan](https://www.ruby-forum.com/u/morgan)\ **Post date:** [March 17, 2010, 10:33pm UTC](https://www.ruby-forum.com/t/updated-rails-now-missing-rails-gem/182294/7 "2010-03-17T22:33:11Z")
On Tue, Jan 26, 2010 at 12:26 AM, Morgan M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)wrote: > > > you do have installed, or comment out RAILS\_GEM\_VERSION to use the Morgan, I just performed a quick test and I was able to get the following working: a) Rails 2.3.5, Ruby 1.9.1/1.9.2, Rack 1.1.0, and Thin 1.2.7 b) Rails 3.0 b, Ruby 1.9.1/1.9.2, Rack 1.1.0, and Thin 1.2.7 Thus, I’ll be happy to send you my test Rails app for (a) above. -Conrad ---
**Author:** ![morgan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/0ea827/32.png) [@morgan](https://www.ruby-forum.com/u/morgan)\ **Post date:** [April 16, 2010, 5:23am UTC](https://www.ruby-forum.com/t/updated-rails-now-missing-rails-gem/182294/8 "2010-04-16T05:23:10Z")
> Make sure you don’t have gems installed in different places. We were > getting this when run from rc.local because a couple gems had gotten > installed in a user directory (~/.gem) instead of the system path. Forgot; use: gem list -d to see where things are installed