# Help with RailRoad

**URL:** <https://www.ruby-forum.com/t/help-with-railroad/130989>\
**Category:** Rails\
**Created:** [March 5, 2008, 12:20am UTC](https://www.ruby-forum.com/t/help-with-railroad/130989 "2008-03-05T00:20:00Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![captaffy](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/f04885/32.png) [@captaffy](https://www.ruby-forum.com/u/captaffy)\
**Post date:** [March 5, 2008, 12:20am UTC](https://www.ruby-forum.com/t/help-with-railroad/130989/1 "2008-03-05T00:20:00Z")

</div>

When I run this code I don’t hace any problem:  
railroad -a -i -o full\_models.dot -C

But if run this code:  
railroad -a -i -o full\_models.dot -M  
I get this:  
/Users/juan/Desktop/dticket\_4\_03\_08/vendor/rails/activerecord/lib/active\_record/base.rb:1532:in  
`method_missing_without_paginate': undefined method`\_’ for  
#Class:0x251965c (NoMethodError)  
from  
/Users/juan/Desktop/dticket\_4\_03\_08/vendor/plugins/will\_paginate/lib/will\_paginate/finder.rb:93:in  
`method_missing' from ./app/models/setting.rb:4 from /opt/local/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:27:in`gem\_original\_require’  
from  
/opt/local/lib/ruby/vendor\_ruby/1.8/rubygems/custom\_require.rb:27:in  
`require' from /Users/juan/Desktop/dticket_4_03_08/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:496:in`require’  
from  
/Users/juan/Desktop/dticket\_4\_03\_08/vendor/rails/activerecord/lib/…/…/activesupport/lib/active\_support/dependencies.rb:342:in  
`new_constants_in' from /Users/juan/Desktop/dticket_4_03_08/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:496:in`require’  
from  
/opt/local/lib/ruby/gems/1.8/gems/railroad-0.4.0/lib/railroad/models\_diagram.rb:36:in  
`load_classes' from /opt/local/lib/ruby/gems/1.8/gems/railroad-0.4.0/lib/railroad/models_diagram.rb:36:in`each’  
from  
/opt/local/lib/ruby/gems/1.8/gems/railroad-0.4.0/lib/railroad/models\_diagram.rb:36:in  
`load_classes' from /opt/local/lib/ruby/gems/1.8/gems/railroad-0.4.0/lib/railroad/app_diagram.rb:21:in`initialize’  
from  
/opt/local/lib/ruby/gems/1.8/gems/railroad-0.4.0/lib/railroad/models\_diagram.rb:14:in  
`initialize' from /opt/local/lib/ruby/gems/1.8/gems/railroad-0.4.0/bin/railroad:31:in`new’  
from /opt/local/lib/ruby/gems/1.8/gems/railroad-0.4.0/bin/railroad:31  
from /opt/local/bin/railroad:16:in `load’  
from /opt/local/bin/railroad:16