Problems with bundle (Rails)

Question

I'm running Ruby 1.9.3 and Rails 4.0.0, and I'm just starting to learn how to use Ruby on Rails. Whenever I type the command to create a project: rails new blog I get this error when the bundle tries to execute the "bundle install" command:

Bundler could not find compatible versions for gem "bundler":
In Gemfile:
rails (= 4.0.0) ruby depends on
  bundler (< 2.0, >= 1.3.0) ruby

Current Bundler version:
  bundler (1.2.3)

This Gemfile requires a different version of Bundler.
Perhaps you need to update Bundler by running `gem install bundler`?

But with the command: gem list bundle returns: bundler (1.3.5, 1.2.3) And the command: bundle -v returns: Bundler version 1.3.5

I don't know why that's happening, I appreciate any help, thanks.

Answer 1

Try removing the version in your Gemfile. Just keep

gem 'bundler'

Now run

bundle update

Answer 2

Try check Gemfile.lock for used bundler version.

You also can try to uninstall old version:

gem uninstall bundler --version 1.2.3