File lib not found

Sorry guys, I recently successfully installed visual ruby but while
trying to run it, I keep getting this error message.

C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
require' from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:inrequire’
from
C:/Ruby193/lib/ruby/gems/1.9.1/gems/visualruby-0.1.2/vr:6:in <top (required)>' from C:/Ruby193/bin/vr:23:inload’
from C:/Ruby193/bin/vr:23:in `’

OS: windows32: 8

I am having similar problems - using Windows7 pro. Any suggestions?
vr fails to start. Here is the output I get:

ruby 1.9.3p550 (2014-10-27) [i386-mingw32]

C:\Users\aurelia-bear-fawkes>vr
C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
require': cannot load such file -- cairo.so (LoadError) from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:i nrequire’
from
C:/Ruby193/lib/ruby/gems/1.9.1/gems/cairo-1.12.9-x86-mingw32/lib/ca
iro.rb:46:in rescue in <top (required)>' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/cairo-1.12.9-x86-mingw32/lib/ca iro.rb:42:in<top (required)>’
from
C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:i
n require' from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:i nrequire’
from
C:/Ruby193/lib/ruby/gems/1.9.1/gems/glib2-2.2.3-x86-mingw32/lib/gli
b2.rb:97:in <top (required)>' from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:i nrequire’
from
C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:i
n require' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/gtk2-2.2.3-x86-mingw32/lib/gtk2 /base.rb:12:in<top (required)>’
from
C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:i
n require' from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:i nrequire’
from
C:/Ruby193/lib/ruby/gems/1.9.1/gems/gtk2-2.2.3-x86-mingw32/lib/gtk2
.rb:11:in <top (required)>' from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:i nrequire’
from
C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:i
n require' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/gtksourceview2-2.2.3-x86-mingw3 2/lib/gtksourceview2.rb:8:in<top (required)>’
from
C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:i
n require' from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:i nrequire’
from
C:/Ruby193/lib/ruby/gems/1.9.1/gems/visualruby-1.0.16/vr:4:in <top (required)>' from C:/Ruby193/bin/vr:23:inload’
from C:/Ruby193/bin/vr:23:in `’

C:\Users\aurelia-bear-fawkes>