try using the bin/bundle install command - ruby-on-rails

Question

This is my gem file
source 'https://rubygems.org'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.2.3'
# Use sqlite3 as the database for Active Record
gem 'sqlite3’, group: [:development, :test]
# gems required by Heroku
gem ‘pg’, group: :production
gem ‘rails_12factor’, group: :production
# Use SCSS for stylesheets
gem 'sass-rails', ‘~> 5.0’
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.1.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0', group: :doc
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'
# Use Unicorn as the app server
# gem 'unicorn'
# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development
group :development, :test do
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug'
# Access an IRB console on exception pages or by using <%= console %> in views
gem 'web-console', '~> 2.0'
# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring'
end
This is the error i get when trying to use the bin/bundle install command
LJ$ bin/bundle install --without production
[!] There was an error parsing `Gemfile`: syntax error, unexpected tIDENTIFIER, expecting end-of-input - gem 'sass-rails', ‘~> 5.0’
^. Bundler cannot continue.
# from /Users/LJ/code/blog/Gemfile:12
# -------------------------------------------
# # Use SCSS for stylesheets
> gem 'sass-rails', ‘~> 5.0’
# # Use Uglifier as compressor for JavaScript assets
# -------------------------------------------
**I can't figure out what the problem is. I am going along with the Rails Crash Course book if that helps.

Answer 1

An example of the invalid quote characters is:
gem 'sqlite3’
The second ' is an invalid single quote. Notice how it slightly curves in your sample code.
These types of errors usually show up when you edit the text in a text editor like TextEdit. Try fixing the single quotes using a different text editor. Try using something like TextWrangler, SublimeText, or just nano.