Guys, this gem is producing next error at run time.
My gem file is at the bottom.
/Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/sass-3.2.12/lib/sass/util.rb:424:in `rails_root': ERROR: Rails.root is nil! (RuntimeError)
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/sass-3.2.12/lib/sass/plugin/rails.rb:11:in `default_options'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/sass-3.2.12/lib/sass/plugin/configuration.rb:33:in `options'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/sass-3.2.12/lib/sass/plugin/compiler.rb:38:in `initialize'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/sass-3.2.12/lib/sass/plugin.rb:63:in `new'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/sass-3.2.12/lib/sass/plugin.rb:63:in `compiler'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/sass-3.2.12/lib/sass/plugin.rb:120:in `options'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/sass-3.2.12/lib/sass/plugin/rails.rb:24:in `<top (required)>'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `block in require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:214:in `load_dependency'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/sass-3.2.12/lib/sass/plugin.rb:127:in `<top (required)>'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `block in require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:214:in `load_dependency'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/compass-0.12.2/lib/compass/commands/watch_project.rb:5:in `<top (required)>'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `block in require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:214:in `load_dependency'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/compass-0.12.2/lib/compass/commands.rb:11:in `block in <top (required)>'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/compass-0.12.2/lib/compass/commands.rb:10:in `each'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/compass-0.12.2/lib/compass/commands.rb:10:in `<top (required)>'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `block in require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:214:in `load_dependency'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/bundler/gems/guard-compass-d066c9a96fd8/lib/guard/compass_helper.rb:2:in `<top (required)>'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `block in require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:214:in `load_dependency'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/activesupport-4.0.1/lib/active_support/dependencies.rb:229:in `require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/bundler/gems/guard-compass-d066c9a96fd8/lib/guard/compass.rb:5:in `<top (required)>'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:81:in `require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:81:in `rescue in block in require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:66:in `block in require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
from /Users/gaston/Sites/cointrust/config/application.rb:11:in `<top (required)>'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/railties-4.0.1/lib/rails/commands.rb:74:in `require'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/railties-4.0.1/lib/rails/commands.rb:74:in `block in <top (required)>'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/railties-4.0.1/lib/rails/commands.rb:71:in `tap'
from /Users/gaston/.rvm/gems/ruby-2.0.0-p247/gems/railties-4.0.1/lib/rails/commands.rb:71:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
Guys, this gem is producing next error at run time.
My gem file is at the bottom.