Pgsql on rails issue

I am unable to deploy pgsql
C:\wom\website>rails 4.2.0 s
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/pg-0.17.1-x64-mingw32/lib/pg.rb:10:in
require': cannot load such file -- 2.3/pg_ext (LoadError) from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/pg-0.17.1-x64-mingw32/lib/pg.rb:10:inrescue in <top (required)>’
from
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/pg-0.17.1-x64-mingw32/lib/pg.rb:3:in
<top (required)>' from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:91:inrequire’
from
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:91:in
block (2 levels) in require' from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:86:ineach’
from
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:86:in
block in require' from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:75:ineach’
from
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler/runtime.rb:75:in
require' from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/bundler-1.13.6/lib/bundler.rb:106:inrequire’
from C:/wom/website/config/application.rb:7:in <top (required)>' from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:inrequire’
from
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:in
block in server' from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:intap’
from
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in
server' from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:inrun_command!’
from
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in
<top (required)>' from bin/rails:4:inrequire’
from bin/rails:4:in `’

C:\wom\website>