gistfile1.txt

/Users/mcansky/Code/padrino_edge/kc_front/bundler/gems/dm-core-1.0.0/lib/dm-core/model/relationship.rb:373:in `method_missing': undefined method `mount_uploader' for Photo:Class (NoMethodError)
	from /Users/mcansky/Code/padrino_edge/kc_front/bundler/gems/dm-core-1.0.0/lib/dm-core/model/property.rb:288:in `method_missing'
	from /Users/mcansky/Code/padrino_edge/kc_front/app/models/photo.rb:11
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/reloader.rb:175:in `require'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/reloader.rb:175:in `safe_load'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/loader.rb:73:in `require_dependencies'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/loader.rb:71:in `each'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/loader.rb:71:in `require_dependencies'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/application.rb:20:in `inherited'
	from /Users/mcansky/Code/padrino_edge/kc_front/app/app.rb:1
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/reloader.rb:175:in `require'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/reloader.rb:175:in `safe_load'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/loader.rb:73:in `require_dependencies'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/loader.rb:71:in `each'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/loader.rb:71:in `require_dependencies'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/application/mounter.rb:81:in `app_object'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/application/mounter.rb:23:in `initialize'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/application/mounter.rb:153:in `new'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/application/mounter.rb:153:in `mount'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/application/mounter.rb:144:in `mount_core'
	from /Users/mcansky/Code/padrino_edge/kc_front/config/apps.rb:26
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/reloader.rb:175:in `require'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/reloader.rb:175:in `safe_load'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/loader.rb:73:in `require_dependency'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/loader.rb:71:in `each'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/loader.rb:71:in `require_dependency'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/loader.rb:11:in `load!'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/loader.rb:11:in `each'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/loader.rb:11:in `load!'
	from /Users/mcansky/Code/padrino_edge/kc_front/config/boot.rb:23
	from /Users/mcansky/.rvm/rubies/ree-1.8.7-2010.01/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
	from /Users/mcansky/.rvm/rubies/ree-1.8.7-2010.01/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/lib/padrino-core/cli/base.rb:23:in `start'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/thor-0.13.6/lib/thor/task.rb:33:in `send'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/thor-0.13.6/lib/thor/task.rb:33:in `run'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/thor-0.13.6/lib/thor/invocation.rb:109
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/thor-0.13.6/lib/thor/invocation.rb:116:in `call'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/thor-0.13.6/lib/thor/invocation.rb:116:in `invoke'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/thor-0.13.6/lib/thor.rb:137:in `start'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/thor-0.13.6/lib/thor/base.rb:378:in `start'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/thor-0.13.6/lib/thor.rb:124:in `start'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/gems/padrino-core-0.9.11/bin/padrino:23
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/bin/padrino:19:in `load'
	from /Users/mcansky/.rvm/gems/ree-1.8.7-2010.01@padrino-edge/bin/padrino:19
[mcansky@thetys kc_front (master)]$ 

Did you ever figure out the cause of this?

I don't remember, it's over a year ago, and I moved the project from padrino to rails 3 for a couple of reasons. Yet I do think I'd resolved it. From the look of it it looks like a problem with the carrierwave gem init or loading

I think this is an issue with with 0.5.6. I went back to 0.5.4 to resolve the issue.

now that you say it, iirc I did that too