I upgrade foreman from snapshot's (09.28.2010) in my testing env. When I click
on "Reports" or "host name" url I see error message in foreman
error_log:

=> Booting WEBrick
=> Rails 2.3.5 application starting on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
[2010-09-29 16:35:46] INFO WEBrick 1.3.1
[2010-09-29 16:35:46] INFO ruby 1.8.7 (2009-06-08) [i386-linux]
[2010-09-29 16:35:46] INFO WEBrick::HTTPServer#start: pid=13573
port=3000

Processing HostsController#index (for 172.30.64.135 at 2010-09-29
16:35:49) [GET]
Parameters: {"action"=>"index", "controller"=>"hosts"}
Rendering template within layouts/standard
Rendering hosts/index
Completed in 233ms (View: 101, DB: 11) | 200 OK [http://srv2-puppet/]

Processing HostsController#show (for 172.30.64.135 at 2010-09-29
16:35:51) [GET]
Parameters: {"action"=>"show", "id"=>"srv-redhat.net.billing.ru",
"controller"=>"hosts"}

NoMethodError (undefined method `round_with_precision' for 0:Fixnum):
app/models/report.rb:68:in `config_retrieval'
app/models/host.rb:394:in `graph'
app/models/host.rb:393:in `graph'
app/controllers/hosts_controller.rb:28:in `show'
app/controllers/hosts_controller.rb:22:in `show'
/usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
/usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
/usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
/usr/lib/ruby/1.8/webrick/server.rb:95:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:92:in `each'
/usr/lib/ruby/1.8/webrick/server.rb:92:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:23:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:82:in `start'

Rendering /var/rails/foreman/public/500.html (500 Internal Server
Error)

Processing ReportsController#index (for 172.30.64.135 at 2010-09-29
16:36:15) [GET]
Parameters: {"action"=>"index", "controller"=>"reports"}
Rendering template within layouts/standard
Rendering reports/index

ActionView::TemplateError (undefined method `round_with_precision' for
0:Fixnum) on line #27 of app/views/reports/_list.html.erb:
24: <td><%= h report.failed ></td>
25: <td><= h report.failed_restarts ></td>
26: <td><= h report.skipped ></td>
27: <td><= h report.config_retrieval ></td>
28: <td><= h report.runtime ></td>
29: <td align="right">
30: <= link_to "Details", report %>

app/models/report.rb:68:in `config_retrieval'
    app/views/reports/_list.html.erb:27
    app/views/reports/_list.html.erb:16:in `each'
    app/views/reports/_list.html.erb:16
    app/views/reports/index.html.erb:3
    /usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
    /usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
    /usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
    /usr/lib/ruby/1.8/webrick/server.rb:162:in `start'
    /usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
    /usr/lib/ruby/1.8/webrick/server.rb:95:in `start'
    /usr/lib/ruby/1.8/webrick/server.rb:92:in `each'
    /usr/lib/ruby/1.8/webrick/server.rb:92:in `start'
    /usr/lib/ruby/1.8/webrick/server.rb:23:in `start'
    /usr/lib/ruby/1.8/webrick/server.rb:82:in `start'

Rendering /var/rails/foreman/public/500.html (500 Internal Server
Error)