我制作了一个简单的 Sinatra 应用程序来运行主页。它已经在我的电脑上运行了。现在我想在 heroku 上托管它，但我无法让它运行。我对“Gemfile”或“Procfile”等概念并不熟悉。
我的 ruby 应用需要 Sinatra、haml 和 sinatra/r18n。我的 gemfile 看起来像这样：
source :rubygems
gem 'sinatra'
gem 'thin'
gem 'sinatra-r18n'
gem 'haml'
我的 Procfile 看起来像这样：
web: bundle exec ruby app.rb -p $PORT
我的 app.rb 是这样开始的：
# app.rb
require 'rubygems'
require 'sinatra'
require 'sinatra/r18n'
require 'haml'
enable :sessions
helpers do
def set_lang (langcode)
...
如果我没记错的话，该目录中的其他文件包括通过 bundle install 创建的 Gemfile.lock 以及“r18n”、“public”、“views”的文件夹。
如果我在 heroku 上启动应用程序，“heroku ps”命令会说应用程序“启动”，但如果我使用“heroku open”，我会收到“内部服务器错误”。
这是我将其推送到heroku后的“heroku日志”：
2012-09-15T19:34:54+00:00 heroku[slugc]: Slug compilation started
2012-09-15T19:35:01+00:00 heroku[api]: Release v13 created by -@gmail.com
2012-09-15T19:35:01+00:00 heroku[api]: Deploy bebc79e by -@gmail.com
2012-09-15T19:35:01+00:00 heroku[web.1]: State changed from up to starting
2012-09-15T19:35:01+00:00 heroku[slugc]: Slug compilation finished
2012-09-15T19:35:02+00:00 heroku[web.1]: Starting process with command `bundle exec ruby app.rb -p 54979`
2012-09-15T19:35:05+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2012-09-15T19:35:05+00:00 heroku[web.1]: State changed from starting to up
2012-09-15T19:35:06+00:00 app[web.1]: == Sinatra/1.1.0 has taken the stage on 20773 for production with backup from Thin
2012-09-15T19:35:06+00:00 app[web.1]: >> Thin web server (v1.4.1 codename Chromeo)
2012-09-15T19:35:06+00:00 app[web.1]: >> Maximum connections set to 1024
2012-09-15T19:35:06+00:00 app[web.1]: >> Listening on 0.0.0.0:20773, CTRL+C to stop
2012-09-15T19:35:06+00:00 app[web.1]: >> Stopping ...
2012-09-15T19:35:06+00:00 app[web.1]:
2012-09-15T19:35:06+00:00 app[web.1]: == Sinatra has ended his set (crowd applauds)
2012-09-15T19:35:07+00:00 heroku[web.1]: Process exited with status 0
有人知道这里出了什么问题吗？如果您对使用的概念更熟悉，也许会很明显。我也会提示帮助我解决问题的材料，但直到现在我所有的谷歌搜索/阅读都没有帮助。
更新 28-09 我现在从代码中删除了 Procfile，但仍然得到“内部服务器错误”。这是更多应该包含崩溃的日志：
2012-09-28T18:04:50+00:00 heroku[web.1]: State changed from down to starting
2012-09-28T18:04:58+00:00 heroku[web.1]: Starting process with command `bundle exec thin start -R config.ru -e production -p 30813`
2012-09-28T18:05:01+00:00 heroku[web.1]: State changed from starting to up
2012-09-28T18:05:02+00:00 app[web.1]: /app/views/start.haml:1:in `evaluate_source'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/tilt-1.3.3/lib/tilt/template.rb:209:in `instance_eval'
2012-09-28T18:05:02+00:00 app[web.1]: Encoding::CompatibilityError - incompatible character encodings: ASCII-8BIT and UTF-8:
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/tilt-1.3.3/lib/tilt/template.rb:209:in `evaluate_source'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/tilt-1.3.3/lib/tilt/template.rb:127:in `evaluate'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/tilt-1.3.3/lib/tilt/template.rb:144:in `cached_evaluate'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/tilt-1.3.3/lib/tilt/haml.rb:24:in `evaluate'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/tilt-1.3.3/lib/tilt/template.rb:76:in `render'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:452:in `render'
2012-09-28T18:05:02+00:00 app[web.1]: /app/app.rb:28:in `block in <top (required)>'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:370:in `haml'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:1032:in `call'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:1032:in `block in compile!'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:620:in `instance_eval'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:620:in `route_eval'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:656:in `block in process_route'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:653:in `catch'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:604:in `block (2 levels) in route!'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:653:in `process_route'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:603:in `block in route!'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:602:in `each'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:602:in `route!'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:530:in `block in call!'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:706:in `instance_eval'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:741:in `dispatch!'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:706:in `block in invoke'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:706:in `catch'
2012-09-28T18:05:02+00:00 heroku[router]: GET fierce-crag-6255.herokuapp.com/ dyno=web.1 queue=0 wait=0ms service=73ms status=500 bytes=30
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:706:in `invoke'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:516:in `call'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:530:in `call!'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:1168:in `synchronize'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/session/abstract/id.rb:200:in `call'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/methodoverride.rb:21:in `call'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/commonlogger.rb:20:in `call'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/session/abstract/id.rb:205:in `context'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:1142:in `block in call'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/connection.rb:80:in `block in pre_process'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/connection.rb:53:in `process'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/connection.rb:78:in `pre_process'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/connection.rb:38:in `receive_data'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/connection.rb:78:in `catch'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.1.0/lib/sinatra/base.rb:1142:in `call'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/backends/base.rb:63:in `start'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run_machine'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/server.rb:159:in `start'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/controllers/controller.rb:86:in `start'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/runner.rb:185:in `run_command'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/lib/thin/runner.rb:151:in `run!'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/thin-1.4.1/bin/thin:6:in `<top (required)>'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/bin/thin:19:in `load'
2012-09-28T18:05:02+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/bin/thin:19:in `<main>'
2012-09-28T18:05:02+00:00 app[web.1]: 212.90.85.15 - - [28/Sep/2012 18:05:02] "GET / HTTP/1.1" 500 30 0.0591
2012-09-28T18:05:03+00:00 app[web.1]: 212.90.85.15 - - [28/Sep/2012 18:05:03] "GET /favicon.ico HTTP/1.1" 200 1416 0.0109
2012-09-28T18:05:03+00:00 heroku[router]: GET fierce-crag-6255.herokuapp.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=13ms status=200 bytes=1416
2012-09-28T18:05:03+00:00 heroku[router]: GET fierce-crag-6255.herokuapp.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=4ms status=200 bytes=1416
2012-09-28T18:05:03+00:00 app[web.1]: 212.90.85.15 - - [28/Sep/2012 18:05:03] "GET /favicon.ico HTTP/1.1" 200 1416 0.0026