# Ruby error - cannot find ruby gem active record **URL:** \ **Category:** Ruby\ **Created:** [July 25, 2007, 7:18pm UTC](https://www.ruby-forum.com/t/ruby-error-cannot-find-ruby-gem-active-record/110360 "2007-07-25T19:18:40Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [July 25, 2007, 7:18pm UTC](https://www.ruby-forum.com/t/ruby-error-cannot-find-ruby-gem-active-record/110360/1 "2007-07-25T19:18:40Z")
I get the following error message C:/InstantRails/ruby/lib/ruby/site\_ruby/1.8/rubygems.rb:251:in `report_activate_error': Could not find RubyGem activerecord (>= 0.0.0) (Gem::LoadError) from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:188:in`activate’ from C:/InstantRails/ruby/lib/ruby/site\_ruby/1.8/rubygems.rb:66:in `active_gem_with_options' from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:59:in`require\_gem’ from C:/RadRails/workspace/album/my\_ruby\_code.rb:1 When I try execute the following piece of code require\_gem “activerecord” class Photo \< ActiveRecord::Base end Photo.establish\_connection( :adapter =\> “mysql”, :database =\> “album\_development”) for column in Photo.columns print column.name, “\t” end puts puts for photo in Photo.find(:all) for column in Photo.columns print photo.send(column.name), “\t” end puts end I suspect it’s a class path problem or a bug in the version I am using which is the 1.8.4 stable version If anyone can help, i’d really appreciate it. Thanks ---
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [July 25, 2007, 7:27pm UTC](https://www.ruby-forum.com/t/ruby-error-cannot-find-ruby-gem-active-record/110360/2 "2007-07-25T19:27:34Z")
On 7/25/07, removed\_email\_address@domain.invalid [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > `require\_gem’ > from C:/RadRails/workspace/album/my\_ruby\_code.rb:1 > > When I try execute the following piece of code > > require\_gem “activerecord” Use: requre “active\_record” Todd ---
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [July 25, 2007, 7:46pm UTC](https://www.ruby-forum.com/t/ruby-error-cannot-find-ruby-gem-active-record/110360/3 "2007-07-25T19:46:23Z")
On Jul 25, 1:26 pm, “Todd B.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > `activate’ > > Use: requre “active\_record” > > Todd Thanks for the quick response I landed up running gem install activerecord --include dependencies and I got it to work but there was an error at the end Gem not found exception could not find dependencies. Do you know what this would mean? Also When i installed the Gem package - shouldn’t it automatically install active record? ---
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [July 25, 2007, 10:16pm UTC](https://www.ruby-forum.com/t/ruby-error-cannot-find-ruby-gem-active-record/110360/4 "2007-07-25T22:16:36Z")
On 7/25/07, removed\_email\_address@domain.invalid [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Also When i installed the Gem package - shouldn’t it automatically > install active record? I am not sure about your set up. Are you saying the command “gem install activerecord” worked fine, but you are having trouble requiring the gem in your code? Or are you saying that you can load the gem, but get an error when you try to use it. What is your OS? Are you requiring ‘rubygems’ first? Here’s what I did… gem install activerecord Then, in irb… irb(main):001:0\> require ‘rubygems’ =\> true irb(main):002:0\> require ‘postgres’ #I require this because I’m using postgresql =\> true irb(main):003:0\> require ‘active\_record’ =\> true And then, smooth sailing from there on. Where in this process are you getting an error? ---
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [July 26, 2007, 5:55am UTC](https://www.ruby-forum.com/t/ruby-error-cannot-find-ruby-gem-active-record/110360/5 "2007-07-26T05:55:48Z")
On Jul 25, 4:15 pm, “Todd B.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > this would mean? > > Here’s what I did… > > =\> true > > And then, smooth sailing from there on. Where in this process are you > getting an error? Things seem to have gotten worse for me. I had it working at one point now i have installed everything from scratch again nad I get the following error - i am running windows C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active\_record/ vendor/mysql.rb:111:in `initialize': Bad file descriptor - connect(2) (Errno::EBADF) from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active_record/vendor/mysql.rb:111:in `real\_connect’ from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active\_record/connection\_adapters/mysql\_adapter.rb:389:in `connect' from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active_record/connection_adapters/mysql_adapter.rb:152:in `initialize’ from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active\_record/connection\_adapters/mysql\_adapter.rb:82:in `mysql_connection' from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active_record/connection_adapters/abstract/connection_specification.rb: 262:in `connection\_without\_query\_cache=’ from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active\_record/query\_cache.rb:54:in `connection=' from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active_record/connection_adapters/abstract/connection_specification.rb: 230:in `retrieve\_connection’ from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active\_record/connection\_adapters/abstract/connection\_specification.rb: 78:in `connection' from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active_record/base.rb:763:in `columns’ from C:/RadRails/workspace/album/my\_ruby\_code.rb:9 I installed ruby 1.8.4-20 into c:\ruby I then installed rails using gem insall rails -r -y I have the preference in RadRails set correctly to point to these directories but it seems as though it’s looking for active record in a different directory or something Boy this sure is frustrating thanks jack ---
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [July 26, 2007, 6:45am UTC](https://www.ruby-forum.com/t/ruby-error-cannot-find-ruby-gem-active-record/110360/6 "2007-07-26T06:45:52Z")
On Jul 26, 12:22 am, “Todd B.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > (Errno::EBADF) > > active\_record/connection\_adapters/abstract/connection\_specification.rb: > > active\_record/base.rb:763:in `columns’ > > Then, when I try to query through ActiveRecord, it gives me that > > error. > > Check > > - your database.yml file > - that your mysql server is running that could be it, i will check that right away, thanks ---
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [July 26, 2007, 6:23am UTC](https://www.ruby-forum.com/t/ruby-error-cannot-find-ruby-gem-active-record/110360/7 "2007-07-26T06:23:50Z")
On 7/25/07, removed\_email\_address@domain.invalid [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > active\_record/connection\_adapters/mysql\_adapter.rb:389:in `connect’ > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ > I installed ruby 1.8.4-20 into c:\ruby > I then installed rails using gem insall rails -r -y > I have the preference in RadRails set correctly to point to these > directories but it seems as though it’s looking for active record in a > different directory or something No, this is a connection error. I can reproduce this by establishing a connection with ‘mysql’ (even though I don’t have MySQL installed). Then, when I try to query through ActiveRecord, it gives me that error. Check - your database.yml file - that your mysql server is running ---
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [July 26, 2007, 8:56am UTC](https://www.ruby-forum.com/t/ruby-error-cannot-find-ruby-gem-active-record/110360/8 "2007-07-26T08:56:05Z")
On Jul 26, 12:22 am, “Todd B.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > (Errno::EBADF) > > active\_record/connection\_adapters/abstract/connection\_specification.rb: > > active\_record/base.rb:763:in `columns’ > > Then, when I try to query through ActiveRecord, it gives me that > > error. > > Check > > - your database.yml file > - that your mysql server is running I got it to work eventually, couple problems but the main thing is that i had to change the way you include the active record gem to as follows gem “activerecord” require “active\_record” An earlier version of ruby may have worked with the require\_gem “activerecord” thanks so much for your help, one of the problems i had was that I had not started the database so you were right. cheers jack (long night)