以下是代码：
# helloworld.rb
require 'sinatra'
get '/' do
'Hello world! Welcome to the root!'
end
当我部署到Heroku时，我在日志中得到了这个：
2012-02-03T23:18:46+00:00 heroku[web.1]: State changed from crashed to created
2012-02-03T23:18:46+00:00 heroku[web.1]: State changed from created to starting
2012-02-03T23:18:47+00:00 heroku[slugc]: Slug compilation finished
2012-02-03T23:18:48+00:00 heroku[web.1]: Starting process with command `thin -p 17403 -e production -R /home/heroku_rack/heroku.ru start`
2012-02-03T23:18:49+00:00 app[web.1]: <internal:lib/rubygems/custom_require>:29:in `require': no such file to load -- helloworld (LoadError)
2012-02-03T23:18:49+00:00 app[web.1]: from <internal:lib/rubygems/custom_require>:29:in `require'
2012-02-03T23:18:49+00:00 app[web.1]: from config.ru:1:in `block (3 levels) in <main>'
2012-02-03T23:18:49+00:00 app[web.1]: from /home/heroku_rack/heroku.ru:23:in `eval'
2012-02-03T23:18:49+00:00 app[web.1]: from /home/heroku_rack/heroku.ru:23:in `block (3 levels) in <main>'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.1.0/lib/rack/builder.rb:46:in `instance_eval'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.1.0/lib/rack/builder.rb:63:in `new'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.1.0/lib/rack/builder.rb:63:in `map'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.1.0/lib/rack/builder.rb:46:in `initialize'
2012-02-03T23:18:49+00:00 app[web.1]: from /home/heroku_rack/heroku.ru:18:in `block (2 levels) in <main>'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.1.0/lib/rack/builder.rb:46:in `instance_eval'
2012-02-03T23:18:49+00:00 app[web.1]: from /home/heroku_rack/heroku.ru:11:in `new'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.1.0/lib/rack/builder.rb:46:in `initialize'
2012-02-03T23:18:49+00:00 app[web.1]: from /home/heroku_rack/heroku.ru:11:in `block in <main>'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.1.0/lib/rack/builder.rb:46:in `instance_eval'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.1.0/lib/rack/builder.rb:46:in `initialize'
2012-02-03T23:18:49+00:00 app[web.1]: from /home/heroku_rack/heroku.ru:1:in `new'
2012-02-03T23:18:49+00:00 app[web.1]: from /home/heroku_rack/heroku.ru:1:in `<main>'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/thin-1.2.6/lib/rack/adapter/loader.rb:36:in `eval'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/thin-1.2.6/lib/thin/controllers/controller.rb:65:in `start'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/thin-1.2.6/lib/rack/adapter/loader.rb:36:in `load'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/thin-1.2.6/lib/thin/controllers/controller.rb:175:in `load_rackup_config'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/thin-1.2.6/lib/thin/runner.rb:143:in `run!'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/thin-1.2.6/lib/thin/runner.rb:177:in `run_command'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/thin-1.2.6/bin/thin:6:in `<top (required)>'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/bin/thin:19:in `load'
2012-02-03T23:18:49+00:00 app[web.1]: from /usr/ruby1.9.2/bin/thin:19:in `<main>'
2012-02-03T23:18:50+00:00 heroku[web.1]: State changed from starting to crashed
2012-02-03T23:18:51+00:00 heroku[web.1]: Process exited
2012-02-03T23:18:57+00:00 heroku[router]: Error H10 (App crashed) -> GET alterra.heroku.com/ dyno= queue= wait= service= status=503 bytes=
2012-02-03T23:18:57+00:00 heroku[nginx]: 129.89.10.150 - - [03/Feb/2012:23:18:57 +0000] "GET / HTTP/1.1" 503 607 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_7) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.46 Safari/535.11" alterra.heroku.com
我对此完全陌生，所以我认为我做错了什么或忘了包含一些东西。我刚刚收到H10应用程序崩溃错误和应用程序错误页面。
答案 0 :(得分：0)
在config.ru中，您需要更改
require 'helloworld'
到
require './helloworld'
这是Ruby 1.9.2中引入的更改，其中当前目录不再位于加载路径上。如果这对您的本地计算机有效，那么您可以使用Ruby 1.8.7。如果是这种情况，则值得研究升级到1.9.2。