ruby on rails - Seeing 500 error page but no errors can be find in log -

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My Ruby app starts successfully but when I go to the local host: 3000 I see this page:

Enter image details here

Checking the production.log file There is only one line: 

  # logfile October 28 10:47:41 -0500 2014luser @ luser-VirtualBox is built on: ~ / repo / amm $

Mongrel.log indicates that the application successfully started: 

  ** demonized, any open Files are closed Log / Mongel.PID View and log / Mongel.log for information. ** 127.0.0.1:3000 ** Starting to listen to Mongrel ** Rails starting with production environment ... /home/luser/.rvm/gems/ruby-1.8.7-head/gems/rails-2.3 .5 / lib / rails /gem_dependency.rb:119: Warning: GEM: Dependency # version_jection has been removed and will be removed on or after August 2010. Use #requirement ** Loaded Rails ** Load any Rail Specific GemPlugins ** Signals Ready. TERM = & gt; Stop. USR2 = & gt; restart. INT = & gt; Stop (no resume). ** Registered Railway Signals HUP = & gt; Reload (without restarting) it can not work well ** available at Mongrel 1.1.5 127.0.0.1:3000 ** Written by PID file / mongrel.pid

How can I go about solving this problem?


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