Capistrano部署獨角獸錯誤未初始化常量RAILS_ENV（NameError）

Question

我剛剛成功地將我的RoR應用程序部署到使用橡膠& Capistrano的AWS。但是，當我導航到頁面時，它顯示默認的nginx頁面。顯然，我在設置階段錯過了一些東西，將nginx/unicorn指向正確的目錄來爲我的應用程序提供服務。

當我運行tail -f log/unicorn.stderr.log我看到以下內容：

E, [2015-12-07T14:23:41.253757 #3808] ERROR -- : reaped #<Process::Status: pid 24405 exit 1> worker=0 
E, [2015-12-07T14:23:41.301617 #24409] ERROR -- : uninitialized constant RAILS_ENV (NameError) 
/ebs/microposts2-production/current/config/unicorn.rb:73:in `rescue in block in reload' 
/ebs/microposts2-production/current/config/unicorn.rb:61:in `block in reload' 
/ebs/microposts2-production/shared/bundle/ruby/2.0.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:611:in `call' 
/ebs/microposts2-production/shared/bundle/ruby/2.0.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:611:in `init_worker_process' 
/ebs/microposts2-production/shared/bundle/ruby/2.0.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:639:in `worker_loop' 
/ebs/microposts2-production/shared/bundle/ruby/2.0.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:508:in `spawn_missing_workers' 
/ebs/microposts2-production/shared/bundle/ruby/2.0.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:519:in `maintain_worker_count' 
/ebs/microposts2-production/shared/bundle/ruby/2.0.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:283:in `join' 
/ebs/microposts2-production/shared/bundle/ruby/2.0.0/gems/unicorn-5.0.1/bin/unicorn_rails:209:in `<top (required)>' 
/ebs/microposts2-production/shared/bundle/ruby/2.0.0/bin/unicorn_rails:23:in `load' 
/ebs/microposts2-production/shared/bundle/ruby/2.0.0/bin/unicorn_rails:23:in `<main>' 

我假設，因爲環境被追加到我的應用程序名稱Rubber.env存在，但是這個錯誤讓我認爲並非如此。哎呀，我甚至不確定這個問題甚至適用於nginx默認頁面問題。有人可以分享我做錯了什麼，或錯過了嗎？

Answer 1

對於任何人都希望，固定麒麟模板5.0+會工作，請參閱：

https://github.com/rubber/rubber/issues/570

Answer 2

你需要清除默認的nginx虛擬主機通常在/etc/nginx/sites-enabled/default，只需刪除該文件，然後你應該很好去。