There was an error while trying to load the gem 'sass-rails'. (Bundler::GemRequireError)

Question

I am getting an error while starting rails server.

C:\Ruby22-x64\WebAppRails>rails s C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:80:in `rescue in block (2 levels) in require': There was an error while trying to load the gem 'sass-rails'. (Bundler::GemRequireError)
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `each'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `require'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler.rb:99:in `require'
        from C:/Ruby22-x64/WebAppRails/config/application.rb:7:in `<top (required)>'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:in `require'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:in `block in server'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `tap'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `server'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'

Here are the gems I'm using:

C:\Ruby22-x64\WebAppRails>bundle show

Gems included by the bundle:

• actionmailer (4.2.6)
• actionpack (4.2.6)
• actionview (4.2.6)
• activejob (4.2.6)
• activemodel (4.2.6)
• activerecord (4.2.6)
• activesupport (4.2.6)
• arel (6.0.3)
• binding_of_caller (0.7.2)
• builder (3.2.2)
• bundler (1.11.2)
• byebug (8.2.5)
• coffee-rails (4.1.1)
• coffee-script (2.4.1)
• coffee-script-source (1.10.0)
• concurrent-ruby (1.0.1)
• debug_inspector (0.0.2)
• erubis (2.7.0)
• execjs (2.6.0)
• globalid (0.3.6)
• i18n (0.7.0)
• jbuilder (2.4.1)
• jquery-rails (4.1.1)
• json (1.8.3)
• loofah (2.0.3)
• mail (2.6.4)
• mime-types (3.0)
• mime-types-data (3.2016.0221)
• mini_portile2 (2.0.0)
• minitest (5.8.4)
• multi_json (1.11.3)
• nokogiri (1.6.7.2)
• rack (1.6.4)
• rack-test (0.6.3)
• rails (4.2.6)
• rails-deprecated_sanitizer (1.0.3)
• rails-dom-testing (1.0.7)
• rails-html-sanitizer (1.0.3)
• railties (4.2.6)
• rake (11.1.2)
• rdoc (4.2.2)
• sass (3.4.22)
• sass-rails (5.0.4)
• sdoc (0.4.1)
• sprockets (3.6.0)
• sprockets-rails (3.0.4)
• sqlite3 (1.3.11)
• thor (0.19.1)
• thread_safe (0.3.5)
• tilt (2.0.2)
• turbolinks (2.5.3)
• tzinfo (1.2.2)
• tzinfo-data (1.2016.4)
• uglifier (3.0.0)
• web-console (2.3.0)

gem version is 2.4.5.1 and ruby version is 2.2.4

What do I need to do to fix this?

Answer 1

My problem got solved when I installed proper version of Ruby for my freshly cloned Rails app - I had 2.4.1 installed but my app needed 2.3.

Answer 2

Add the following to your Gemfile:

gem 'sass-rails', '>= 5.0.3'

And do

bundle update sass-rails