From: Abhishek Singh <abhishek_mpec@...>
Date: 2009-09-02T20:25:27+09:00
Subject: Problem in ruby1.9 gems

hi i have installed ruby 1.9.1 side by side with previously installed
ruby 1.8.7
i have created symlink to ruby1.9 also.
now when i say 'gem1.8 list', it shows the list of gems installed for
ruby 1.8

i've not installed any gems for ruby 1.9.1 yet.
problem is when i try to get list of gems for ruby1.9.like:
$ gem1.9 list

following error comes :

/usr/lib/ruby1.9/1.9.1/rubygems/spec_fetcher.rb:1:in `require': no such
file to load -- zlib (LoadError)
from /usr/lib/ruby1.9/1.9.1/rubygems/spec_fetcher.rb:1:in `<top
(required)>'
from /usr/lib/ruby1.9/1.9.1/rubygems/commands/query_command.rb:3:in
`require'
from /usr/lib/ruby1.9/1.9.1/rubygems/commands/query_command.rb:3:in
`<top (required)>'
from /usr/lib/ruby1.9/1.9.1/rubygems/commands/list_command.rb:2:in
`require'
from /usr/lib/ruby1.9/1.9.1/rubygems/commands/list_command.rb:2:in `<top
(required)>'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:140:in `require'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:140:in `rescue
in load_and_instantiate'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:132:in
`load_and_instantiate'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:65:in `[]'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:118:in
`find_command'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:104:in
`process_args'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:75:in `run'
from /usr/lib/ruby1.9/1.9.1/rubygems/gem_runner.rb:39:in `run'
from /usr/bin/gem1.9:24:in `<main>'



and when i tried to install gems for ruby1.9:
$ sudo gem1.9 install activesupport

following error comes:

/usr/lib/ruby1.9/1.9.1/rubygems/package.rb:10:in `require': no such file
to load -- zlib (LoadError)
from /usr/lib/ruby1.9/1.9.1/rubygems/package.rb:10:in `<top (required)>'
from /usr/lib/ruby1.9/1.9.1/rubygems/format.rb:9:in `require'
from /usr/lib/ruby1.9/1.9.1/rubygems/format.rb:9:in `<top (required)>'
from /usr/lib/ruby1.9/1.9.1/rubygems/installer.rb:11:in `require'
from /usr/lib/ruby1.9/1.9.1/rubygems/installer.rb:11:in `<top
(required)>'
from /usr/lib/ruby1.9/1.9.1/rubygems/dependency_installer.rb:3:in
`require'
from /usr/lib/ruby1.9/1.9.1/rubygems/dependency_installer.rb:3:in `<top
(required)>'
from /usr/lib/ruby1.9/1.9.1/rubygems/commands/install_command.rb:4:in
`require'
from /usr/lib/ruby1.9/1.9.1/rubygems/commands/install_command.rb:4:in
`<top (required)>'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:140:in `require'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:140:in `rescue
in load_and_instantiate'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:132:in
`load_and_instantiate'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:65:in `[]'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:118:in
`find_command'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:104:in
`process_args'
from /usr/lib/ruby1.9/1.9.1/rubygems/command_manager.rb:75:in `run'
from /usr/lib/ruby1.9/1.9.1/rubygems/gem_runner.rb:39:in `run'
from /usr/bin/gem1.9:24:in `<main>'

how i can install gems for ruby1.9 ???
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