所以Heroku整天都在沮丧，当然我没有意识到这一点，直到我对我的应用程序进行了大量的更改。现在Heroku回来了，我的应用程序坏了。
这是一个随机文本块，使stackoverflow认为我已经更好地解释了我的代码块，因为它们不会让我发布其他内容。
这是我的heroku日志：
2012-06-30T22:58:31+00:00 app[web.1]: app/helpers/application_helper.rb:23:in `landing_photo'
2012-06-30T22:58:31+00:00 app[web.1]: app/views/pages/home.html.erb:3:in `_app_views_pages_home_html_erb__3529485503375966156_14193960'
2012-06-30T22:58:31+00:00 app[web.1]:
2012-06-30T22:58:31+00:00 app[web.1]:
2012-06-30T22:58:31+00:00 heroku[router]: GET jasonmccarthy.ie/ dyno=web.1 queue=0 wait=0ms service=195ms status=500 bytes=643
2012-06-30T22:58:31+00:00 heroku[nginx]: 194.46.182.60 - - [30/Jun/2012:22:58:31 +0000] "GET / HTTP/1.1" 500 643 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.47 Safari/536.11" jasonmccarthy.ie
2012-06-30T22:58:48+00:00 heroku[run.1]: Awaiting client
2012-06-30T22:58:48+00:00 heroku[run.1]: Starting process with command `bundle exec rake db:migrate`
2012-06-30T22:58:48+00:00 heroku[run.1]: State changed from starting to up
2012-06-30T22:58:54+00:00 heroku[run.1]: Process exited with status 0
2012-06-30T22:58:54+00:00 heroku[run.1]: State changed from up to complete
2012-06-30T22:58:57+00:00 app[web.1]:
2012-06-30T22:58:57+00:00 app[web.1]:
2012-06-30T22:58:57+00:00 app[web.1]: Started GET "/" for 194.46.182.60 at 2012-06-30 22:58:57 +0000
2012-06-30T22:58:57+00:00 app[web.1]: Processing by PagesController#home as HTML
2012-06-30T22:58:57+00:00 app[web.1]: Rendered pages/home.html.erb within layouts/application (0.7ms)
2012-06-30T22:58:57+00:00 app[web.1]: Completed 500 Internal Server Error in 1ms
2012-06-30T22:58:57+00:00 heroku[router]: GET jasonmccarthy.ie/ dyno=web.1 queue=0 wait=0ms service=15ms status=500 bytes=643
2012-06-30T22:58:57+00:00 app[web.1]:
2012-06-30T22:58:57+00:00 app[web.1]: ActionView::Template::Error (can't convert Range into Integer):
2012-06-30T22:58:57+00:00 app[web.1]: 1: <% provide(:title, 'Jason Mc Carthy | Fashion Photography Wedding Photography') %>
2012-06-30T22:58:57+00:00 app[web.1]: 2:
2012-06-30T22:58:57+00:00 app[web.1]: 3: <%= landing_photo %>
2012-06-30T22:58:57+00:00 app[web.1]: app/helpers/application_helper.rb:23:in `landing_photo'
2012-06-30T22:58:57+00:00 app[web.1]: 4:
2012-06-30T22:58:57+00:00 app[web.1]: app/helpers/application_helper.rb:23:in `rand'
2012-06-30T22:58:57+00:00 app[web.1]: 5: <span id="tagline">Endeavouring to build a creative & inspiring 2D world</span>
2012-06-30T22:58:57+00:00 app[web.1]: app/views/pages/home.html.erb:3:in `_app_views_pages_home_html_erb__3529485503375966156_14193960'
2012-06-30T22:58:57+00:00 app[web.1]:
2012-06-30T22:58:57+00:00 app[web.1]:
2012-06-30T22:58:57+00:00 heroku[nginx]: 194.46.182.60 - - [30/Jun/2012:22:58:57 +0000] "GET / HTTP/1.1" 500 643 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.47 Safari/536.11" jasonmccarthy.ie
2012-06-30T23:04:47+00:00 heroku[slugc]: Slug compilation started
2012-06-30T23:05:24+00:00 heroku[api]: Release v30 created by colmtuite@gmail.com
2012-06-30T23:05:24+00:00 heroku[api]: Deploy b7f77bc by colmtuite@gmail.com
2012-06-30T23:05:24+00:00 heroku[web.1]: State changed from up to starting
2012-06-30T23:05:25+00:00 heroku[slugc]: Slug compilation finished
2012-06-30T23:05:26+00:00 heroku[web.1]: Starting process with command `bundle exec rails server -p 18620`
2012-06-30T23:05:27+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2012-06-30T23:05:28+00:00 app[web.1]: [2012-06-30 23:05:28] ERROR SignalException: SIGTERM
2012-06-30T23:05:28+00:00 app[web.1]: /usr/local/lib/ruby/1.9.1/webrick/server.rb:90:in `select'
2012-06-30T23:05:29+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5)
2012-06-30T23:05:29+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5)
2012-06-30T23:05:34+00:00 app[web.1]: [2012-06-30 23:05:34] INFO WEBrick 1.3.1
2012-06-30T23:05:34+00:00 app[web.1]: [2012-06-30 23:05:34] INFO ruby 1.9.2 (2011-07-09) [x86_64-linux]
2012-06-30T23:05:34+00:00 app[web.1]: [2012-06-30 23:05:34] INFO WEBrick::HTTPServer#start: pid=1 port=18620
2012-06-30T23:05:35+00:00 heroku[web.1]: State changed from starting to up
2012-06-30T23:05:36+00:00 app[web.1]: => Booting WEBrick
2012-06-30T23:05:36+00:00 app[web.1]: => Rails 3.2.3 application starting in production on http://0.0.0.0:18620
2012-06-30T23:05:36+00:00 app[web.1]: => Call with -d to detach
2012-06-30T23:05:36+00:00 app[web.1]: => Ctrl-C to shutdown server
2012-06-30T23:05:36+00:00 app[web.1]:
2012-06-30T23:05:36+00:00 app[web.1]:
2012-06-30T23:05:36+00:00 app[web.1]: Started GET "/" for 194.46.182.60 at 2012-06-30 23:05:36 +0000
2012-06-30T23:05:36+00:00 app[web.1]: Processing by PagesController#home as HTML
2012-06-30T23:05:36+00:00 app[web.1]: Rendered pages/home.html.erb within layouts/application (79.1ms)
2012-06-30T23:05:36+00:00 app[web.1]: Completed 500 Internal Server Error in 108ms
2012-06-30T23:05:36+00:00 app[web.1]: ActionView::Template::Error (can't convert Range into Integer):
2012-06-30T23:05:36+00:00 app[web.1]:
2012-06-30T23:05:36+00:00 app[web.1]: 1: <% provide(:title, 'Jason Mc Carthy | Fashion Photography Wedding Photography') %>
2012-06-30T23:05:36+00:00 app[web.1]: 2:
2012-06-30T23:05:36+00:00 app[web.1]: 3: <%= l
anding_photo %>
2012-06-30T23:05:36+00:00 app[web.1]: 4:
2012-06-30T23:05:36+00:00 app[web.1]: 5: <span id="tagline">Endeavouring to build a creative & inspiring 2D world</span>
2012-06-30T23:05:36+00:00 app[web.1]: app/helpers/application_helper.rb:23:in `rand'
2012-06-30T23:05:36+00:00 app[web.1]: app/helpers/application_helper.rb:23:in `landing_photo'
2012-06-30T23:05:36+00:00 app[web.1]: app/views/pages/home.html.erb:3:in `_app_views_pages_home_html_erb__3704543374435589796_23990640'
2012-06-30T23:05:36+00:00 app[web.1]:
2012-06-30T23:05:36+00:00 app[web.1]:
2012-06-30T23:05:36+00:00 heroku[router]: GET jasonmccarthy.ie/ dyno=web.1 queue=0 wait=0ms service=238ms status=500 bytes=643
2012-06-30T23:05:36+00:00 heroku[nginx]: 194.46.182.60 - - [30/Jun/2012:23:05:36 +0000] "GET / HTTP/1.1" 500 643 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.47 Safari/536.11" jasonmccarthy.ie
2012-06-30T23:05:37+00:00 heroku[web.1]: Error R12 (Exit timeout) -> At least one process failed to exit within 10 seconds of SIGTERM
2012-06-30T23:05:37+00:00 heroku[web.1]: Stopping remaining processes with SIGKILL
2012-06-30T23:05:38+00:00 heroku[web.1]: Process exited with status 137
2012-06-30T23:05:49+00:00 heroku[web.1]: State changed from up to starting
2012-06-30T23:05:51+00:00 app[web.1]:
2012-06-30T23:05:51+00:00 app[web.1]:
2012-06-30T23:05:51+00:00 app[web.1]: Started GET "/" for 194.46.182.60 at 2012-06-30 23:05:51 +0000
2012-06-30T23:05:51+00:00 app[web.1]: Processing by PagesController#home as HTML
2012-06-30T23:05:51+00:00 app[web.1]: Rendered pages/home.html.erb within layouts/application (0.6ms)
2012-06-30T23:05:51+00:00 app[web.1]: Completed 500 Internal Server Error in 1ms
2012-06-30T23:05:51+00:00 app[web.1]:
2012-06-30T23:05:51+00:00 app[web.1]: ActionView::Template::Error (can't convert Range into Integer):
2012-06-30T23:05:51+00:00 app[web.1]: 2:
2012-06-30T23:05:51+00:00 app[web.1]: 1: <% provide(:title, 'Jason Mc Carthy | Fashion Photography Wedding Photography') %>
2012-06-30T23:05:51+00:00 app[web.1]: 3: <%= landing_photo %>
2012-06-30T23:05:51+00:00 app[web.1]: 4:
2012-06-30T23:05:51+00:00 app[web.1]: 5: <span id="tagline">Endeavouring to build a creative & inspiring 2D world</span>
2012-06-30T23:05:51+00:00 app[web.1]: app/helpers/application_helper.rb:23:in `rand'
2012-06-30T23:05:51+00:00 app[web.1]: app/helpers/application_helper.rb:23:in `landing_photo'
2012-06-30T23:05:51+00:00 app[web.1]: app/views/pages/home.html.erb:3:in `_app_views_pages_home_html_erb__3704543374435589796_23990640'
2012-06-30T23:05:51+00:00 app[web.1]:
2012-06-30T23:05:51+00:00 app[web.1]:
2012-06-30T23:05:51+00:00 heroku[nginx]: 194.46.182.60 - - [30/Jun/2012:23:05:51 +0000] "GET / HTTP/1.1" 500 643 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.47 Safari/536.11" jasonmccarthy.ie
2012-06-30T23:05:51+00:00 heroku[router]: GET jasonmccarthy.ie/ dyno=web.1 queue=0 wait=0ms service=13ms status=500 bytes=643
2012-06-30T23:05:52+00:00 heroku[web.1]: Starting process with command `bundle exec rails server -p 23782`
2012-06-30T23:05:52+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2012-06-30T23:05:53+00:00 app[web.1]: /usr/local/lib/ruby/1.9.1/webrick/server.rb:90:in `select'
2012-06-30T23:05:53+00:00 app[web.1]: [2012-06-30 23:05:53] ERROR SignalException: SIGTERM
2012-06-30T23:05:57+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5)
2012-06-30T23:05:57+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5)
申请助手：
def landing_photo
random = Random.rand(1..4)
image_tag "home-#{random}.png", {:class => 'bg'}
end
页/家：
<%= landing_photo %>
答案 0 :(得分：10)
这可能是Ruby版本问题，因为random = Random.rand(1..4)在运行MRI-1.9.3的系统上运行正常。也许电风暴导致Heroku改变你的Ruby。也许你依赖于现在已经不存在的实验室插件1.9.3。
使用heroku run ruby -v检查您正在运行的版本，并且可以通过将以下内容放在gemfile的顶部来强制它们使用1.9.3：
source 'https://rubygems.org'
ruby '1.9.3'
答案 1 :(得分：2)
你使用了rand方法的错误参数，它只接受一个整数，而不是它们的范围。
您正在寻找
random = Random.rand(4)
您的其他选项不使用随机，而是使用Array#sample
random = (1..4).to_a.sample
答案 2 :(得分：0)
假设您没有向Heroku推送任何新代码，引入了一些错误的代码。
我会检查你是否可以在本地重现错误。如果一切都很稳定，我会尝试再次将您的最新代码重新部署到heroku。