crashes on startup in ubuntu 17.10

Loading libraries...
/usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- cairo-gobject (LoadError)
 from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
 from /usr/share/screenruler/utils/addons_ruby.rb:59:in `block in require'
 from /usr/share/screenruler/utils/addons_ruby.rb:59:in `each'
 from /usr/share/screenruler/utils/addons_ruby.rb:59:in `require'
 from /usr/lib/ruby/vendor_ruby/pango.rb:19: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/share/screenruler/utils/addons_ruby.rb:59:in `block in require'
 from /usr/share/screenruler/utils/addons_ruby.rb:59:in `each'
 from /usr/share/screenruler/utils/addons_ruby.rb:59:in `require'
 from /usr/lib/ruby/vendor_ruby/gtk2/base.rb:14: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/share/screenruler/utils/addons_ruby.rb:59:in `block in require'
 from /usr/share/screenruler/utils/addons_ruby.rb:59:in `each'
 from /usr/share/screenruler/utils/addons_ruby.rb:59:in `require'
 from /usr/lib/ruby/vendor_ruby/gtk2.rb:11: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/share/screenruler/utils/addons_ruby.rb:59:in `block in require'
 from /usr/share/screenruler/utils/addons_ruby.rb:59:in `each'
 from /usr/share/screenruler/utils/addons_ruby.rb:59:in `require'
 from /usr/bin/screenruler:51:in `<main>'

not sure if this is related to this or not:
https://bugs.launchpad.net/screenruler/+bug/925835