Redmine

Hi, I am getting this error while installing redmine. Kindly help me to install on my vps I have used rvm 1.9.3@redmine (gemset)
:~# apt-get install redmine redmine-mysql
Reading package lists... Done
Building dependency tree
Reading state information... Done
redmine is already the newest version.
redmine-mysql is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue [Y/n]? y
Setting up redmine (1.3.2+dfsg1-1ubuntu1) ...
dbconfig-common: writing config to /etc/dbconfig-common/redmine/instances/default.conf

Creating config file /etc/redmine/default/database.yml.new with new version
granting access to database redmine_default for redmine@localhost: already exists.
creating database redmine_default: already exists.
dbconfig-common: flushing administrative password
NOTE: Gem.source_index is deprecated, use Specification. It will be removed on or after 2011-11-01.
Gem.source_index called from /usr/share/redmine/vendor/rails/railties/lib/rails/gem_dependency.rb:21.
NOTE: Gem::SourceIndex#initialize is deprecated with no replacement. It will be removed on or after 2011-11-01.
Gem::SourceIndex#initialize called from /usr/share/redmine/vendor/rails/railties/lib/rails/vendor_gem_source_index.rb:100.
NOTE: Gem::SourceIndex#add_spec is deprecated, use Specification.add_spec. It will be removed on or after 2011-11-01.
Gem::SourceIndex#add_spec called from /usr/local/rvm/rubies/ruby-1.9.3-p545/lib/ruby/site_ruby/1.9.1/rubygems/source_index.rb:91.
NOTE: Gem::SourceIndex#add_spec is deprecated, use Specification.add_spec. It will be removed on or after 2011-11-01.
Gem::SourceIndex#add_spec called from /usr/local/rvm/rubies/ruby-1.9.3-p545/lib/ruby/site_ruby/1.9.1/rubygems/source_index.rb:91.
NOTE: Gem::SourceIndex#add_spec is deprecated, use Specification.add_spec. It will be removed on or after 2011-11-01.
Gem::SourceIndex#add_spec called from /usr/local/rvm/rubies/ruby-1.9.3-p545/lib/ruby/site_ruby/1.9.1/rubygems/source_index.rb:91.
NOTE: Gem::SourceIndex#add_spec is deprecated, use Specification.add_spec. It will be removed on or after 2011-11-01.
Gem::SourceIndex#add_spec called from /usr/local/rvm/rubies/ruby-1.9.3-p545/lib/ruby/site_ruby/1.9.1/rubygems/source_index.rb:91.
NOTE: Gem::SourceIndex#add_spec is deprecated, use Specification.add_spec. It will be removed on or after 2011-11-01.
Gem::SourceIndex#add_spec called from /usr/local/rvm/rubies/ruby-1.9.3-p545/lib/ruby/site_ruby/1.9.1/rubygems/source_index.rb:91.
NOTE: Gem::SourceIndex#add_spec is deprecated, use Specification.add_spec. It will be removed on or after 2011-11-01.
Gem::SourceIndex#add_spec called from /usr/local/rvm/rubies/ruby-1.9.3-p545/lib/ruby/site_ruby/1.9.1/rubygems/source_index.rb:91.
NOTE: Gem::SourceIndex#add_spec is deprecated, use Specification.add_spec. It will be removed on or after 2011-11-01.
Gem::SourceIndex#add_spec called from /usr/local/rvm/rubies/ruby-1.9.3-p545/lib/ruby/site_ruby/1.9.1/rubygems/source_index.rb:91.
rake aborted!
cannot load such file -- active_support

(See full trace by running task with --trace)
dpkg: error processing redmine (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
redmine
E: Sub-process /usr/bin/dpkg returned an error code (1)

Thanks in advance