Rails 4.2.1 on ubuntu 15.04 execution error

Question

I've just installed rails 4.2.1 and ruby 2.2.2. When I run rails new blog, I get the following error

rbenv: rails: command not found

The `rails' command exists in these Ruby versions:
  2.1.6

I'm new to linux and it'll help if anyone can tell me where it went wrong

Answer 1

rbenv is short for Ruby Environment, and its saying that you seem to have another version of ruby installed - 2.1.6 and that it has the rails command.

try installing rails independently using gem install rails - I'm assuming you used bundler?

This discussion might give you some ideas from the rbenv github issue #73