Description: Ubuntu Bionic Beaver (development branch)
Release: 18.04
ruby-sass:
Installed: 3.4.23-1
d@lap:~$ sass --trace --watch custom.sass:custom.css
>>> Sass is watching for changes. Press Ctrl-C to stop.
/usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- ffi_c (LoadError)
from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/lib/ruby/vendor_ruby/ffi.rb:6:in `rescue in <top (required)>'
from /usr/lib/ruby/vendor_ruby/ffi.rb:3:in `<top (required)>'
from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/lib/ruby/vendor_ruby/rb-inotify/native.rb:1:in `<top (required)>'
from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/lib/ruby/vendor_ruby/rb-inotify.rb:1:in `<top (required)>'
from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/lib/ruby/vendor_ruby/listen/adapter/linux.rb:30:in `_configure'
from /usr/lib/ruby/vendor_ruby/listen/adapter/base.rb:45:in `block in configure'
from /usr/lib/ruby/vendor_ruby/listen/adapter/base.rb:40:in `each'
from /usr/lib/ruby/vendor_ruby/listen/adapter/base.rb:40:in `configure'
from /usr/lib/ruby/vendor_ruby/listen/adapter/base.rb:63:in `start'
from /usr/lib/ruby/2.3.0/forwardable.rb:204:in `start'
from /usr/lib/ruby/vendor_ruby/listen/listener.rb:68:in `block in <class:Listener>'
from /usr/lib/ruby/vendor_ruby/listen/fsm.rb:121:in `instance_eval'
from /usr/lib/ruby/vendor_ruby/listen/fsm.rb:121:in `call'
from /usr/lib/ruby/vendor_ruby/listen/fsm.rb:91:in `transition_with_callbacks!'
from /usr/lib/ruby/vendor_ruby/listen/fsm.rb:57:in `transition'
from /usr/lib/ruby/vendor_ruby/listen/listener.rb:91:in `start'
from /usr/lib/ruby/vendor_ruby/sass/plugin/compiler.rb:405:in `block in listen_to'
from /usr/lib/ruby/vendor_ruby/sass/plugin/compiler.rb:405:in `map'
from /usr/lib/ruby/vendor_ruby/sass/plugin/compiler.rb:405:in `listen_to'
from /usr/lib/ruby/vendor_ruby/sass/plugin/compiler.rb:341:in `watch'
from /usr/lib/ruby/vendor_ruby/sass/plugin.rb:109:in `method_missing'
from /usr/lib/ruby/vendor_ruby/sass/exec/sass_scss.rb:356:in `watch_or_update'
from /usr/lib/ruby/vendor_ruby/sass/exec/sass_scss.rb:51:in `process_result'
from /usr/lib/ruby/vendor_ruby/sass/exec/base.rb:52:in `parse'
from /usr/lib/ruby/vendor_ruby/sass/exec/base.rb:19:in `parse!'
from /usr/bin/sass:8:in `<main>'
