[Rails] How to upgrade rails 2 application to rails 3?

I developed a rails application using rails 2.3.8 version but now how to upgrade this application in rails 3.0 version. -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, sen

[Rails] Dicom integration

Hi., I integrate dicom in my rails application that purpose i install RMagick gem then the following errors are came. C:\Ruby187\bin>gem install RMagick Temporarily enhancing PATH to include DevKit... Building native extensions. This could take a while... ERROR: Error installing RMagick: