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这是我第一次在生产环境中启动rails应用程序。我第一次运行rails server -e production，然后必须得到密钥。之后我跑了这条线bundle exec rake assets:precompile db:migrate RAILS_ENV=production。有一次，我跑这条线我跑rails server -e production一次我在终端得到了以下错误（见最后4行），在浏览器中的404错误页面沿：无法在本地生产环境中启动rails - Rails 5
[email protected]:~/Desktop/cnd$ rails server -e production
=> Booting Puma
=> Rails 5.1.3 application starting in production on http://0.0.0.0:3000
=> Run `rails server -h` for more startup options
Puma starting in single mode...
* Version 3.10.0 (ruby 2.3.3-p222), codename: Russell's Teapot
* Min threads: 5, max threads: 5
* Environment: production
* Listening on tcp://0.0.0.0:3000
Use Ctrl-C to stop
/home/krav/Desktop/cnd/app/views/creatives/index.html.erb:20: warning: key :data is duplicated and overwritten on line 20
/home/krav/Desktop/cnd/app/views/creatives/index.html.erb:20: warning: key :data is duplicated and overwritten on line 20
/home/krav/Desktop/cnd/app/views/creatives/index.html.erb:107: warning: key :data is duplicated and overwritten on line 107
/home/krav/Desktop/cnd/app/views/creatives/index.html.erb:107: warning: key :data is duplicated and overwritten on line 107
当我去是行这里给了一个错误，他们分别是：
线20
<%= image_tag "AdobeStock_95578405.jpeg" ,alt: "slidebg1", :data => {bgposition: "center bottom"} , :data => {bgrepeat: "no-repeat"} ,:data => {bgfit: "cover"} , :class => "rev-slidebg" %>
线107
<%= image_tag "AdobeStock_108067927.jpeg" ,alt: "slidebg1", :data => {bgposition: "center bottom"} , :data => {bgrepeat: "no-repeat"} ,:data => {bgfit: "cover"} , :class => "rev-slidebg" %>
在开发中，这工作正常。我无法弄清楚为什么这些行给我一个错误，并且不允许Web应用程序启动，他们看起来是正确的，并让我看到我在开发模式时需要的外观。
