I have been working with rails and have been trying to setup passenger with rake 10.1.0 and it sends back me this errors.
Here is the link to the error.Website LInk
That's a lot more hassle than needbe. All you really had to do was reset your gemsets: https://github.com/phusion/passenger/wiki/Resetting-RVM-gemsets
rvm gemset empty
or before rvm use whateveryourgemset
Basically you can list all active gemsets, empty them all, then install passenger into the correct one by installing your bundle again from the application folder. Problem solved.