Rails 4 Bootstrap 3 glyphicon display square under production - ruby-on-rails

Question

I use bootstrap-sass to display glyphicons, it works well at localhost under development, but after i deploy it to a server use production, it display as a little square.
I have already search for answers, they just tell me to precompile something. But they didn't work.
This is my production.rb
OperationBackend::Application.configure do
config.cache_classes = true
config.eager_load = true
config.consider_all_requests_local = false
config.action_controller.perform_caching = true
config.serve_static_assets = false
config.assets.js_compressor = :uglifier
config.assets.compile = false
config.assets.digest = true
config.log_level = :info
config.i18n.fallbacks = true
config.active_support.deprecation = :notify
config.assets.precompile += ["*.woff", "*.eov", "*.svg", "*.ttf"]
config.log_formatter = ::Logger::Formatter.new
config.active_record.dump_schema_after_migration = false
Paperclip.options[:command_path] = "/usr/local/bin"
end
I also try make config.assets.complie = true
and do RAILS_ENV=production rake asset:precompile but they all didn't work
This problem torture me hours! Wish to got help from you guys!

Answer 1

config.assets.compile = true
should help

Answer 2

This did it for us. The glyphicons are in the vendors folder, so this is what we had to do to get them to work.
For some reason this worked for our production environment, but not our staging. Our staging.rb file is exactly the same as the production.rb file so this is quite the mystery.
# Disable Rails's static asset server (Apache or nginx will already do this).
config.serve_static_assets = false
# Compress JavaScripts and CSS.
config.assets.js_compressor = :uglifier
config.assets.css_compressor = :sass
# Do not fallback to assets pipeline if a precompiled asset is missed.
config.assets.compile = false
# Generate digests for assets URLs.
config.assets.digest = true
config.assets.precompile << lambda do |filename, path|
path =~ /vendor\/assets/ && !%w(.js .css).include?(File.extname(filename))
end