I had two versions of bundler installed locally 1.15.2 and 1.16.1. I had pushed my code and soon realized that the gemfile.lock BUNDLED WITH, updated the version to 1.16.1 and that is not what we w...

I added omniauth gem to my gemfile and tried to run bundle install, but got a message about incompatibility of rails and bundler versions. I tried to update rails, but got messages about incompatib...

OS is Ubuntu 12.04, 64 bit. New to rails. Relatively new to Ruby. Following the ruby.railstutorial.org tutorial, chapter 3. The tutorial has been updated to use ruby 2.0.0 and Rails 4.0.0.rc1. P...

I have seen this error all over the place, but none of the solutions I have found have helped to fix the issue. I am developing a rails app locally on a Mac and have set up a droplet on DigitalOcea...

I am using a Mac with Pow, Ruby, Rails and a bunch of useful gems. I recently got this error whenever I try to open my app. Bundler::RubyVersionMismatch: Your Ruby version is 1.9.3, but your Gemfi...

I am deploying a Ruby on Rails application and part of the startup script that I have when provisioning a new box is gem update --system. This happened to upgrade Rubygems to version 2.0. however,...

I am PHP programmer that know Rails. Ruby gem bundler very good tool to install dependencies, does php have something like that?(maybe some php framework have such tool). Expanation about gem bun...