我只是将我的rails应用程序推送到heroku并且它给了我关于favicon.ico的错误。整个应用程序崩溃，我无法理解日志错误！这是heroku日志：
2014-06-28T11:52:22.913892+00:00 heroku[api]: Enable Logplex by pubudu.th@gmail.com
2014-06-28T11:52:22.913963+00:00 heroku[api]: Release v2 created by pubudu.th@gmail.com
2014-06-28T11:53:05+00:00 heroku[slug-compiler]: Slug compilation started
2014-06-28T12:02:19.238438+00:00 heroku[api]: Set DATABASE_URL config vars by pubudu.th@gmail.com
2014-06-28T12:02:19.238525+00:00 heroku[api]: Release v3 created by pubudu.th@gmail.com
2014-06-28T12:02:19.335720+00:00 heroku[api]: Attach HEROKU_POSTGRESQL_ROSE resource by pubudu.th@gmail.com
2014-06-28T12:02:18.853978+00:00 heroku[api]: Scale to web=1 by pubudu.th@gmail.com
2014-06-28T12:02:19.335807+00:00 heroku[api]: Release v4 created by pubudu.th@gmail.com
2014-06-28T12:02:19.482165+00:00 heroku[api]: Set LANG, RAILS_ENV, RACK_ENV, SECRET_KEY_BASE config vars by pubudu.th@gmail.com
2014-06-28T12:02:19.482254+00:00 heroku[api]: Release v5 created by pubudu.th@gmail.com
2014-06-28T12:02:19.571248+00:00 heroku[api]: Deploy c8ef4fa by pubudu.th@gmail.com
2014-06-28T12:02:19+00:00 heroku[slug-compiler]: Slug compilation finished
2014-06-28T12:02:19.571429+00:00 heroku[api]: Release v6 created by pubudu.th@gmail.com
2014-06-28T12:02:24.420332+00:00 app[web.1]: bash: bin/rails: No such file or directory
2014-06-28T12:02:25.645244+00:00 heroku[web.1]: State changed from crashed to starting
2014-06-28T12:02:25.644545+00:00 heroku[web.1]: State changed from starting to crashed
2014-06-28T12:02:23.681960+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 33163 -e production`
2014-06-28T12:02:25.635263+00:00 heroku[web.1]: Process exited with status 127
2014-06-28T12:02:32.049142+00:00 app[web.1]: bash: bin/rails: No such file or directory
2014-06-28T12:02:30.951413+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 50449 -e production`
2014-06-28T12:02:33.667800+00:00 heroku[web.1]: Process exited with status 127
2014-06-28T12:02:33.684915+00:00 heroku[web.1]: State changed from starting to crashed
2014-06-28T12:04:18.506293+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=enigmatic-spire-3449.herokuapp.com request_id=85c9ba66-ef48-40c0-8b6c-f8099c1a8f3d fwd="112.135.155.120" dyno= connect= service= status=503 bytes=
2014-06-28T12:04:19.579248+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=enigmatic-spire-3449.herokuapp.com request_id=11e00d00-9a5b-49e8-85b4-5c2ba405a1d9 fwd="112.135.155.120" dyno= connect= service= status=503 bytes=
2014-06-28T12:08:02+00:00 heroku[slug-compiler]: Slug compilation started
2014-06-28T12:08:25.001553+00:00 heroku[api]: Deploy a056fe1 by pubudu.th@gmail.com
2014-06-28T12:08:25.001641+00:00 heroku[api]: Release v7 created by pubudu.th@gmail.com
2014-06-28T12:08:25+00:00 heroku[slug-compiler]: Slug compilation finished
2014-06-28T12:08:25.138090+00:00 heroku[web.1]: State changed from crashed to starting
2014-06-28T12:08:32.070448+00:00 app[web.1]: bash: bin/rails: No such file or directory
2014-06-28T12:08:33.690681+00:00 heroku[web.1]: State changed from starting to crashed
2014-06-28T12:08:31.118712+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 40290 -e production`
2014-06-28T12:08:33.679032+00:00 heroku[web.1]: Process exited with status 127
2014-06-28T12:10:38.288315+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=enigmatic-spire-3449.herokuapp.com request_id=3b6d2e26-6a16-4756-99a8-0a83815cdd9d fwd="112.135.155.120" dyno= connect= service= status=503 bytes=
2014-06-28T12:10:39.340855+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=enigmatic-spire-3449.herokuapp.com request_id=5ca4e9c0-1924-4c15-b625-5374b0be2305 fwd="112.135.155.120" dyno= connect= service= status=503 bytes=
答案 0 :(得分：2)
正如日志明显所述，错误是
bash: bin/rails: No such file or directory
查看其他StackOverflow answers，您可能需要这样做，
rake rails:update:bin