**service chef-server start * Starting chef-server <internal:gem_prelude>:344:in method_missing': undefined methoduser_home' for Gem:Module (NoMethodError)

    from /usr/local/lib/site_ruby/1.9.1/rubygems.rb:354:in `config_file'
    from /usr/local/lib/site_ruby/1.9.1/rubygems/config_file.rb:254:in `config_file_name'
    from /usr/local/lib/site_ruby/1.9.1/rubygems/config_file.rb:179:in `initialize'
    from /usr/local/lib/site_ruby/1.9.1/rubygems.rb:361:in `new'
    from /usr/local/lib/site_ruby/1.9.1/rubygems.rb:361:in `configuration'
    from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.1.3/lib/bundler/rubygems_integration.rb:25:in `configuration'
    from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.1.3/lib/bundler/rubygems_integration.rb:5:in `initialize'
    from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.1.3/lib/bundler/rubygems_integration.rb:380:in `new'
    from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.1.3/lib/bundler/rubygems_integration.rb:380:in `<module:Bundler>'
    from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.1.3/lib/bundler/rubygems_integration.rb:1:in `<top (required)>'
    from /usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
    from /usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
    from /usr/lib/ruby/gems/1.9.1/gems/bundler-1.1.3/lib/bundler.rb:6:in `<top (required)>'
    from /usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
    from /usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
    from /usr/lib/ruby/gems/1.9.1/gems/merb-core-1.1.3/lib/merb-core.rb:9:in `<top (required)>'
    from /usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
    from /usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
    from /usr/lib/ruby/gems/1.9.1/gems/chef-server-api-0.10.8/bin/chef-server:24:in `<top (required)>'
    from /usr/bin/chef-server:19:in `load'
    from /usr/bin/chef-server:19:in `<main>'**

Thu, 17 May 2012 12:37:02 +0530] ERROR: Running exception handlers [Thu, 17 May 2012 12:37:03 +0530] FATAL: Saving node information to /var/chef/cache/failed-run-data.json [Thu, 17 May 2012 12:37:03 +0530] ERROR: Exception handlers complete [Thu, 17 May 2012 12:37:03 +0530] FATAL: Stacktrace dumped to /var/chef/cache/chef-stacktrace.out [Thu, 17 May 2012 12:37:03 +0530] FATAL: Chef::Exceptions::Package: package[compat-db] (oracle::default line 25) had an error: Chef::Exceptions::Package: No version specified, and no candidate version available for compat-db

Satish.M.L