Install Ruby and Bundler for fastlane

gistfile1.txt

# Install rbenv
$ brew install rbenv

# Install Ruby 2.3.1 using rbenv and set it global
$ rbenv install 2.3.1
$ rbenv global 2.3.1
$ ruby --version #version check

# Add the following to your ~/.bash_profile to set globally
# Ruby version
export PATH="$HOME/.rbenv/bin:$PATH"
eval "$(rbenv init -)"
if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi

# Install bundler
$ sudo gem install bundler

# Navigate to fastlane folder and run bundler to install gems
$ cd myproject/fastlane
$ bundle install

# Now you can use bundler to run fastlane.  Just prepend "bundle exec" before the fastlane command. Try it!
$ bundle exec fastlane mylane