rake db:migrate /var/lib/gems/1.9.1/gems/rake-0.8.7/lib/rake/alt_system.rb:32: Use RbConfig instead of obsolete and deprecated Config.
Getting above error on running rake db:migrate.
Below are the list of gems i have installed in my system. * LOCAL GEMS *
actionmailer (4.1.4, 2.3.14) actionpack (4.1.4, 2.3.14) actionview (4.1.4) activemodel (4.1.4) activerecord (4.1.4, 2.3.14) activeresource (4.0.0, 2.3.14) activesupport (4.1.4, 2.3.14) arel (5.0.1.20140414130214) builder (3.2.2) bundler (1.6.3) childprocess (0.5.3) domain_name (0.5.19) erubis (2.7.0) ffi (1.9.3) hike (1.2.3) http-cookie (1.0.2) i18n (0.6.11) json (1.8.1) mail (2.5.4) mechanize (2.7.3) mime-types (2.3, 1.25.1) mini_portile (0.6.0) minitest (5.4.0) multi_json (1.10.1) mysql (2.9.1) net-http-digest_auth (1.4) net-http-persistent (2.9.4) nokogiri (1.6.2.1) ntlm-http (0.1.1) polyglot (0.3.5) rack (1.5.2, 1.1.6) rack-test (0.6.2) rails (2.3.14) rails-observers (0.1.2) railties (4.1.4) rake (0.8.7) rubyzip (1.1.6) selenium-webdriver (2.42.0) sprockets (2.12.1) sprockets-rails (2.1.3) thor (0.19.1) thread_safe (0.3.4) tilt (1.4.1) treetop (1.4.15) tzinfo (1.2.1) unf (0.1.4) unf_ext (0.0.6) watir-webdriver (0.6.10) webrobots (0.1.1) websocket (1.1.4, 1.0.7)