Server not starting with ruby 1.9.1

Rails
1

i had ruby 1.8.7 in my system.(Ubuntu 9.04)
Rails version is 2.1.0
now i have installed ruby 1.9.1p129 side by side with 1.8.7

$ ruby -v
ruby 1.9.1p129 (2009-05-12 revision 23412) [i686-linux]

nd i,ve also done the following:
$ sudo gem install rails

now
$ gem list

*** LOCAL GEMS ***

actionmailer (2.3.3)
actionpack (2.3.3)
activerecord (2.3.3)
activeresource (2.3.3)
activesupport (2.3.3)
rack (1.0.0)
rails (2.3.3)
rake (0.8.7)

now i’m not able to start server for the application which i had
developed using ruby 1.8.7 …i.e.
now when i do ‘ruby script/server’

following error comes:-
/home/abhi/Rails_Projects/Blog/vendor/rails/activesupport/lib/active_support/vendor.rb:33:in
require': no such file to load -- builder (LoadError) from /home/abhi/Rails_Projects/Blog/vendor/rails/activesupport/lib/active_support/vendor.rb:33:inrescue in <top (required)>’
from
/home/abhi/Rails_Projects/Blog/vendor/rails/activesupport/lib/active_support/vendor.rb:2:in
<top (required)>' from /home/abhi/Rails_Projects/Blog/vendor/rails/activesupport/lib/active_support.rb:26:inrequire’
from
/home/abhi/Rails_Projects/Blog/vendor/rails/activesupport/lib/active_support.rb:26:in
<top (required)>' from /home/abhi/Rails_Projects/Blog/vendor/rails/railties/lib/commands/server.rb:1:inrequire’

and on doing
$ ruby script/console
i got:

Loading development environment (Rails 2.1.0)
/opt/ruby1.9/lib/ruby1.9/1.9.1/irb/completion.rb:9:in
require':LoadError: no such file to load -- readline /home/abhi/Rails_Projects/Blog/vendor/rails/railties/lib/initializer.rb:225:inrescue in require_frameworks’: no such file to load – builder
(RuntimeError)
from
/home/abhi/Rails_Projects/Blog/vendor/rails/railties/lib/initializer.rb:222:in
require_frameworks' from /home/abhi/Rails_Projects/Blog/vendor/rails/railties/lib/initializer.rb:113:inprocess’
from
/home/abhi/Rails_Projects/Blog/vendor/rails/railties/lib/initializer.rb:93:in
run' from /home/abhi/Rails_Projects/Blog/config/environment.rb:13:in<top
(required)>’
from /opt/ruby1.9/lib/ruby1.9/1.9.1/irb/init.rb:262:in require' from /opt/ruby1.9/lib/ruby1.9/1.9.1/irb/init.rb:262:inblock in
load_modules’
from /opt/ruby1.9/lib/ruby1.9/1.9.1/irb/init.rb:260:in each' from /opt/ruby1.9/lib/ruby1.9/1.9.1/irb/init.rb:260:inload_modules’
from /opt/ruby1.9/lib/ruby1.9/1.9.1/irb/init.rb:20:in setup' from /opt/ruby1.9/lib/ruby1.9/1.9.1/irb.rb:53:instart’
from /usr/local/bin/irb:12:in `’

from
/home/abhi/Rails_Projects/Blog/vendor/rails/railties/lib/commands/server.rb:1:in
<top (required)>' from script/server:3:inrequire’
from script/server:3:in `’

2

On Sep 3, 10:38 am, Abhishek S. [email protected]
wrote:

following error comes:-
/home/abhi/Rails_Projects/Blog/vendor/rails/activesupport/lib/active_suppor t/vendor.rb:33:in
`require’: no such file to load – builder (LoadError)

Sounds like you’ve got some missing gems (your ruby 1.9 and ruby 1.8
installations will put their gems in separate places)

Fred

from

3

Did you migrate your application to Rails 2.3.3?

On Sep 3, 5:38 am, Abhishek S. [email protected]

4

Rick Lloyd wrote:

Did you migrate your application to Rails 2.3.3?

On Sep 3, 5:38�am, Abhishek S. [email protected]

how to migrate my application to rails 2.3.3

when i do script/console it still shows :

Loading development environment (Rails 2.1.0)
and then error.

while when i created new project now then it is using rails 2.3.3
but old one is still using rails 2.1.0???

-abhishek

5

2009/9/3 Abhishek S. [email protected]:

Rick Lloyd wrote:

Did you migrate your application to Rails 2.3.3?

On Sep 3, 5:38�am, Abhishek S. [email protected]

how to migrate my application to rails 2.3.3

See http://wiki.rubyonrails.org/getting-started/upgrading

Colin