正如你在下面看到的，我已经清楚地尝试使用带有类 user-md 的图标，但这以某种方式显示为 ubuntu 图标。我非常非常困惑。
另外，另一个异常...我有一个导航列表，如 twitter bootstrap 中所述... http://twitter.github.com/bootstrap/components.html#navs
由于某种原因，活动 li 显示了 icon-glass .. 覆盖在所需的 icon-home 上。正常的 li 只显示房子。
我正在使用带有 GNOME Shell 3.6.2 的 ubuntu 12.10，这是我的 gemfile 锁定文件：
GEM
remote: https://rubygems.org/
specs:
RedCloth (4.2.9)
actionmailer (3.2.11)
actionpack (= 3.2.11)
mail (~> 2.4.4)
actionpack (3.2.11)
activemodel (= 3.2.11)
activesupport (= 3.2.11)
builder (~> 3.0.0)
erubis (~> 2.7.0)
journey (~> 1.0.4)
rack (~> 1.4.0)
rack-cache (~> 1.2)
rack-test (~> 0.6.1)
sprockets (~> 2.2.1)
active_enum (0.9.12)
activesupport (~> 3.0)
activemodel (3.2.11)
activesupport (= 3.2.11)
builder (~> 3.0.0)
activerecord (3.2.11)
activemodel (= 3.2.11)
activesupport (= 3.2.11)
arel (~> 3.0.2)
tzinfo (~> 0.3.29)
activeresource (3.2.11)
activemodel (= 3.2.11)
activesupport (= 3.2.11)
activesupport (3.2.11)
i18n (~> 0.6)
multi_json (~> 1.0)
annotate (2.4.1.beta1)
arel (3.0.2)
awesome_print (1.1.0)
bcrypt-ruby (3.0.1)
better_errors (0.3.2)
coderay (>= 1.0.0)
erubis (>= 2.7.0)
binding_of_caller (0.6.8)
blankslate (3.1.2)
bootstrap-sass (2.2.2.0)
sass (~> 3.2)
bootstrap-will_paginate (0.0.9)
will_paginate
builder (3.0.4)
cancan (1.6.7)
cocaine (0.4.2)
coderay (1.0.8)
coffee-rails (3.2.2)
coffee-script (>= 2.2.0)
railties (~> 3.2.0)
coffee-script (2.2.0)
coffee-script-source
execjs
coffee-script-source (1.4.0)
columnize (0.3.6)
country_select (1.1.3)
daemons (1.1.9)
debugger (1.2.4)
columnize (>= 0.3.1)
debugger-linecache (~> 1.1.1)
debugger-ruby_core_source (~> 1.1.7)
debugger-linecache (1.1.2)
debugger-ruby_core_source (>= 1.1.1)
debugger-ruby_core_source (1.1.7)
devise (2.2.2)
bcrypt-ruby (~> 3.0)
orm_adapter (~> 0.1)
railties (~> 3.1)
warden (~> 1.2.1)
diff-lcs (1.1.3)
erubis (2.7.0)
eventmachine (1.0.0)
execjs (1.4.0)
multi_json (~> 1.0)
factory_girl (4.1.0)
activesupport (>= 3.0.0)
factory_girl_rails (4.1.0)
factory_girl (~> 4.1.0)
railties (>= 3.0.0)
ffi (1.0.11)
font-awesome-sass-rails (3.0.0.1)
railties (>= 3.1.1)
sass-rails (>= 3.1.1)
forem-redcarpet (1.0.0)
pygments.rb (= 0.2.4)
redcarpet (= 2.0.1)
geocoder (1.1.6)
gmaps4rails (1.5.6)
gon (4.0.2)
actionpack (>= 2.3.0)
json
google_visualr (2.1.5)
googlecharts (1.6.8)
guard (1.6.1)
listen (>= 0.6.0)
lumberjack (>= 1.0.2)
pry (>= 0.9.10)
thor (>= 0.14.6)
guard-rspec (2.4.0)
guard (>= 1.1)
rspec (~> 2.11)
haml (3.1.7)
hash-deep-merge (0.1.1)
hike (1.2.1)
i18n (0.6.1)
journey (1.0.4)
jquery-rails (2.1.4)
railties (>= 3.0, < 5.0)
thor (>= 0.14, < 2.0)
jquery-ui-rails (3.0.1)
jquery-rails
railties (>= 3.1.0)
json (1.7.6)
kaminari (0.14.1)
actionpack (>= 3.0.0)
activesupport (>= 3.0.0)
lazy_high_charts (1.3.2)
bundler (~> 1.0)
hash-deep-merge
libnotify (0.8.0)
ffi (>= 1.0.11)
listen (0.7.2)
lumberjack (1.0.2)
mail (2.4.4)
i18n (>= 0.4.0)
mime-types (~> 1.16)
treetop (~> 1.4.8)
meta_request (0.2.0)
rack-contrib
rails
method_source (0.8.1)
mime-types (1.19)
multi_json (1.5.0)
nested_form (0.3.1)
nifty-generators (0.4.6)
nokogiri (1.5.6)
orm_adapter (0.4.0)
pg (0.13.2)
polyamorous (0.5.0)
activerecord (~> 3.0)
polyglot (0.3.3)
pry (0.9.11.3)
coderay (~> 1.0.5)
method_source (~> 0.8)
slop (~> 3.4)
pry-debugger (0.2.1)
debugger (~> 1.2.0)
pry (~> 0.9.10)
pygments.rb (0.2.4)
rubypython (~> 0.5.3)
quiet_assets (1.0.1)
railties (~> 3.1)
rack (1.4.4)
rack-cache (1.2)
rack (>= 0.4)
rack-contrib (1.1.0)
rack (>= 0.9.1)
rack-pjax (0.7.0)
nokogiri (~> 1.5)
rack (~> 1.3)
rack-ssl (1.3.2)
rack
rack-test (0.6.2)
rack (>= 1.0)
rails (3.2.11)
actionmailer (= 3.2.11)
actionpack (= 3.2.11)
activerecord (= 3.2.11)
activeresource (= 3.2.11)
activesupport (= 3.2.11)
bundler (~> 1.0)
railties (= 3.2.11)
rails_admin (0.4.1)
bootstrap-sass (~> 2.1)
builder (~> 3.0)
coffee-rails (~> 3.1)
font-awesome-sass-rails (~> 3.0, >= 3.0.0.1)
haml (~> 3.1)
jquery-rails (~> 2.1)
jquery-ui-rails (~> 3.0)
kaminari (~> 0.14)
nested_form (~> 0.2)
rack-pjax (~> 0.6)
rails (~> 3.1)
remotipart (~> 1.0)
sass-rails (~> 3.1)
railties (3.2.11)
actionpack (= 3.2.11)
activesupport (= 3.2.11)
rack-ssl (~> 1.3.2)
rake (>= 0.8.7)
rdoc (~> 3.4)
thor (>= 0.14.6, < 2.0)
rake (10.0.3)
rdoc (3.12)
json (~> 1.4)
redcarpet (2.0.1)
remotipart (1.0.2)
rest-client (1.6.7)
mime-types (>= 1.16)
rolify (3.2.0)
rspec (2.12.0)
rspec-core (~> 2.12.0)
rspec-expectations (~> 2.12.0)
rspec-mocks (~> 2.12.0)
rspec-core (2.12.2)
rspec-expectations (2.12.1)
diff-lcs (~> 1.1.3)
rspec-mocks (2.12.1)
rspec-rails (2.12.2)
actionpack (>= 3.0)
activesupport (>= 3.0)
railties (>= 3.0)
rspec-core (~> 2.12.0)
rspec-expectations (~> 2.12.0)
rspec-mocks (~> 2.12.0)
rubypython (0.5.3)
blankslate (>= 2.1.2.3)
ffi (~> 1.0.7)
sass (3.2.5)
sass-rails (3.2.6)
railties (~> 3.2.0)
sass (>= 3.1.10)
tilt (~> 1.3)
sequel (3.20.0)
simple_form (2.0.4)
actionpack (~> 3.0)
activemodel (~> 3.0)
sinatra (1.0)
rack (>= 1.0)
slop (3.4.3)
sprockets (2.2.2)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
squeel (1.0.14)
activerecord (~> 3.0)
activesupport (~> 3.0)
polyamorous (~> 0.5.0)
taps (0.3.24)
rack (>= 1.0.1)
rest-client (>= 1.4.0, < 1.7.0)
sequel (~> 3.20.0)
sinatra (~> 1.0.0)
thin (1.5.0)
daemons (>= 1.0.9)
eventmachine (>= 0.12.6)
rack (>= 1.0.0)
thor (0.16.0)
tilt (1.3.3)
treetop (1.4.12)
polyglot
polyglot (>= 0.3.1)
tzinfo (0.3.35)
uglifier (1.3.0)
execjs (>= 0.3.0)
multi_json (~> 1.0, >= 1.0.2)
warden (1.2.1)
rack (>= 1.0)
webrat (0.7.3)
nokogiri (>= 1.2.0)
rack (>= 1.0)
rack-test (>= 0.5.3)
will_paginate (3.0.4)
workflow (0.8.0)