Ruby 2.0.0 doesn't work after update -

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i had ruby 1.9.3 installed on window box need run ruby 2.0.0 app installed pik , use switch between 2 different versions of ruby.

i able switch between 2 versions when attempted run ruby 2.0.0 app, doesn't work. might had broken when changing path. or need install other gems supplement ruby 2.0.0? help, thought appreciated. (i installed ruby on rails using railsyinstaller window. why had ruby 1.9.3.)

details:

location of pik: c:\pik

user path before attempting set ruby 2.0.0 default ruby version: c:\pik;c:\railsinstaller\git\cmd;c:\railsinstaller\ruby1.9.3\bin;c:\users\tina\appdata\roaming\npm;

changed path to: c:\pik;c:\railsinstaller\git\cmd;c:\railsinstaller\devkit;c:\users\tina.pik\rubies\ruby-200-p195\bin;c:\users\tina\appdata\roaming\npm;

i able run ruby 1.9.3 apps ruby 1.9.3, when attempted run ruby 2.0.0 app ruby 2.0.0 threw me error below:

error 'bundle install' , 'rails s'


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