heroku logs 爆炸

gistfile1.txt

2011-11-28T07:34:52+00:00 app[web.1]: => Booting WEBrick
2011-11-28T07:34:52+00:00 app[web.1]: => Rails 3.1.0 application starting in production on http://0.0.0.0:52360
2011-11-28T07:34:52+00:00 app[web.1]: => Call with -d to detach
2011-11-28T07:34:52+00:00 app[web.1]: => Ctrl-C to shutdown server
2011-11-28T07:34:52+00:00 app[web.1]: 
2011-11-28T07:34:52+00:00 app[web.1]: 
2011-11-28T07:34:52+00:00 app[web.1]: Started GET "/" for 114.24.63.172 at 2011-11-28 07:34:52 +0000
2011-11-28T07:34:52+00:00 app[web.1]:   Processing by PollsController#index as HTML
2011-11-28T07:34:52+00:00 app[web.1]: Rendered common/_user_nav.html.erb (1.2ms)

:00 app[web.1]: Rendered polls/index.html.erb within layouts/application (38.2ms)
2011-11-28T07:34:53+00:00 app[web.1]: WARNING on line 166 of /app/app/assets/stylesheets/site.css.sass.erb:
2011-11-28T07:34:53+00:00 app[web.1]: This selector doesn't have any properties and will not be rendered.
2011-11-28T07:34:53+00:00 app[web.1]: Completed 500 Internal Server Error in 721ms
2011-11-28T07:34:53+00:00 app[web.1]: 
2011-11-28T07:34:53+00:00 app[web.1]: ActionView::Template::Error (File to import not found or unreadable: compass.
2011-11-28T07:34:53+00:00 app[web.1]: Load path: /app
2011-11-28T07:34:53+00:00 app[web.1]:   (in /app/app/assets/stylesheets/site.css.sass.erb)):
2011-11-28T07:34:53+00:00 app[web.1]:     5:     <!-- Always force latest IE rendering engine (even in intranet) & Chrome Frame -->
2011-11-28T07:34:53+00:00 app[web.1]:     6:     %meta{:content=>"IE=edge,chrome=1", :"http-equiv"=>"X-UA-Compatible"}
2011-11-28T07:34:53+00:00 app[web.1]:     7: 
2011-11-28T07:34:53+00:00 app[web.1]:     8:     = stylesheet_link_tag "site.css"
2011-11-28T07:34:53+00:00 app[web.1]:     9:     = javascript_include_tag "application"
2011-11-28T07:34:53+00:00 app[web.1]:     10:     = javascript_include_tag "https://www.google.com/jsapi"
2011-11-28T07:34:53+00:00 app[web.1]:     11:     %title Taiwan Voting
2011-11-28T07:34:53+00:00 app[web.1]:   app/assets/stylesheets/site.css.sass.erb:1
2011-11-28T07:34:53+00:00 app[web.1]:   

2011-11-28T07:34:53+00:00 app[web.1]: 
2011-11-28T07:34:53+00:00 app[web.1]: 
2011-11-28T07:34:53+00:00 app[web.1]: cache: [GET /] miss
2011-11-28T07:34:53+00:00 app[web.1]: cache: [GET /favicon.ico] miss, store
2011-11-28T07:34:53+00:00 heroku[router]: GET tw-voting.herokuapp.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=10ms status=200 bytes=0