Nevermind I figured it out.. I had a data model called Model.. Obviously 
this was silly, and I have since fixed it .. Now known as Moodel. 

On Thursday, December 11, 2014 12:21:03 PM UTC-6, Abram wrote:
>
> Here is my form, which previously worked in Rails 3:
>
>     <%= form_for Style.new do |s| %>
>     <% end %>
>
> This throws the error: **undefined method `param_key' for nil:NilClass**
>
> **Full Trace:**
>
>     NoMethodError - undefined method `param_key' for nil:NilClass:
>       actionview (4.2.0.rc2) lib/action_view/helpers/form_helper.rb:433:in 
> `form_for'
>       app/views/styles/_add_style_form.html.erb:1:in 
> `_app_views_styles__add_style_form_html_erb__4060888642586793101_94112200'
>       actionview (4.2.0.rc2) lib/action_view/template.rb:145:in `block in 
> render'
>       activesupport (4.2.0.rc2) lib/active_support/notifications.rb:164:in 
> `block in instrument'
>       activesupport (4.2.0.rc2) 
> lib/active_support/notifications/instrumenter.rb:20:in `instrument'
>       activesupport (4.2.0.rc2) lib/active_support/notifications.rb:164:in 
> `instrument'
>       actionview (4.2.0.rc2) lib/action_view/template.rb:333:in 
> `instrument'
>       actionview (4.2.0.rc2) lib/action_view/template.rb:143:in `render'
>       xray-rails (0.1.14) lib/xray/engine.rb:33:in `render_with_xray'
>       actionview (4.2.0.rc2) 
> lib/action_view/renderer/partial_renderer.rb:339:in `render_partial'
>       actionview (4.2.0.rc2) 
> lib/action_view/renderer/partial_renderer.rb:310:in `block in render'
>       actionview (4.2.0.rc2) 
> lib/action_view/renderer/abstract_renderer.rb:39:in `block in instrument'
>       activesupport (4.2.0.rc2) lib/active_support/notifications.rb:164:in 
> `block in instrument'
>       activesupport (4.2.0.rc2) 
> lib/active_support/notifications/instrumenter.rb:20:in `instrument'
>       activesupport (4.2.0.rc2) lib/active_support/notifications.rb:164:in 
> `instrument'
>       actionview (4.2.0.rc2) 
> lib/action_view/renderer/abstract_renderer.rb:39:in `instrument'
>       actionview (4.2.0.rc2) 
> lib/action_view/renderer/partial_renderer.rb:309:in `render'
>       actionview (4.2.0.rc2) lib/action_view/renderer/renderer.rb:47:in 
> `render_partial'
>       actionview (4.2.0.rc2) lib/action_view/renderer/renderer.rb:21:in 
> `render'
>       actionview (4.2.0.rc2) 
> lib/action_view/helpers/rendering_helper.rb:32:in `render'
>       app/views/styles/create_dashboard.html.erb:5:in 
> `_app_views_styles_create_dashboard_html_erb___865179136945855599_42166680'
>       actionview (4.2.0.rc2) lib/action_view/template.rb:145:in `block in 
> render'
>       activesupport (4.2.0.rc2) lib/active_support/notifications.rb:164:in 
> `block in instrument'
>       activesupport (4.2.0.rc2) 
> lib/active_support/notifications/instrumenter.rb:20:in `instrument'
>       activesupport (4.2.0.rc2) lib/active_support/notifications.rb:164:in 
> `instrument'
>       actionview (4.2.0.rc2) lib/action_view/template.rb:333:in 
> `instrument'
>       actionview (4.2.0.rc2) lib/action_view/template.rb:143:in `render'
>       xray-rails (0.1.14) lib/xray/engine.rb:33:in `render_with_xray'
>       actionview (4.2.0.rc2) 
> lib/action_view/renderer/template_renderer.rb:54:in `block (2 levels) in 
> render_template'
>       actionview (4.2.0.rc2) 
> lib/action_view/renderer/abstract_renderer.rb:39:in `block in instrument'
>       activesupport (4.2.0.rc2) lib/active_support/notifications.rb:164:in 
> `block in instrument'
>       activesupport (4.2.0.rc2) 
> lib/active_support/notifications/instrumenter.rb:20:in `instrument'
>       activesupport (4.2.0.rc2) lib/active_support/notifications.rb:164:in 
> `instrument'
>       actionview (4.2.0.rc2) 
> lib/action_view/renderer/abstract_renderer.rb:39:in `instrument'
>       actionview (4.2.0.rc2) 
> lib/action_view/renderer/template_renderer.rb:53:in `block in 
> render_template'
>       actionview (4.2.0.rc2) 
> lib/action_view/renderer/template_renderer.rb:61:in `render_with_layout'
>       actionview (4.2.0.rc2) 
> lib/action_view/renderer/template_renderer.rb:52:in `render_template'
>       actionview (4.2.0.rc2) 
> lib/action_view/renderer/template_renderer.rb:14:in `render'
>       actionview (4.2.0.rc2) lib/action_view/renderer/renderer.rb:42:in 
> `render_template'
>       actionview (4.2.0.rc2) lib/action_view/renderer/renderer.rb:23:in 
> `render'
>       actionview (4.2.0.rc2) lib/action_view/rendering.rb:100:in 
> `_render_template'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/streaming.rb:217:in `_render_template'
>       actionview (4.2.0.rc2) lib/action_view/rendering.rb:83:in 
> `render_to_body'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/rendering.rb:32:in `render_to_body'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/renderers.rb:37:in `render_to_body'
>       actionpack (4.2.0.rc2) lib/abstract_controller/rendering.rb:25:in 
> `render'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/rendering.rb:16:in `render'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/instrumentation.rb:41:in `block (2 levels) in 
> render'
>       activesupport (4.2.0.rc2) 
> lib/active_support/core_ext/benchmark.rb:12:in `block in ms'
>       
> /home/funkdified/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/benchmark.rb:294:in 
> `realtime'
>       activesupport (4.2.0.rc2) 
> lib/active_support/core_ext/benchmark.rb:12:in `ms'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/instrumentation.rb:41:in `block in render'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/instrumentation.rb:84:in `cleanup_view_runtime'
>       activerecord (4.2.0.rc2) 
> lib/active_record/railties/controller_runtime.rb:25:in 
> `cleanup_view_runtime'
>       sunspot_rails (2.1.1) 
> lib/sunspot/rails/railties/controller_runtime.rb:15:in 
> `cleanup_view_runtime'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/instrumentation.rb:40:in `render'
>       wicked_pdf (0.11.0) lib/wicked_pdf/pdf_helper.rb:23:in 
> `render_with_wicked_pdf'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/implicit_render.rb:10:in `default_render'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/implicit_render.rb:5:in `send_action'
>       actionpack (4.2.0.rc2) lib/abstract_controller/base.rb:198:in 
> `process_action'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/rendering.rb:10:in `process_action'
>       actionpack (4.2.0.rc2) lib/abstract_controller/callbacks.rb:20:in 
> `block in process_action'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:117:in 
> `call'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:151:in 
> `block in halting_and_conditional'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:151:in 
> `block in halting_and_conditional'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:234:in 
> `block in halting'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:169:in 
> `block in halting'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:234:in 
> `block in halting'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:234:in 
> `block in halting'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:234:in 
> `block in halting'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:169:in 
> `block in halting'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:92:in 
> `_run_callbacks'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:734:in 
> `_run_process_action_callbacks'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:81:in 
> `run_callbacks'
>       actionpack (4.2.0.rc2) lib/abstract_controller/callbacks.rb:19:in 
> `process_action'
>       actionpack (4.2.0.rc2) lib/action_controller/metal/rescue.rb:29:in 
> `process_action'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/instrumentation.rb:31:in `block in 
> process_action'
>       activesupport (4.2.0.rc2) lib/active_support/notifications.rb:164:in 
> `block in instrument'
>       activesupport (4.2.0.rc2) 
> lib/active_support/notifications/instrumenter.rb:20:in `instrument'
>       activesupport (4.2.0.rc2) lib/active_support/notifications.rb:164:in 
> `instrument'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/instrumentation.rb:30:in `process_action'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
>       activerecord (4.2.0.rc2) 
> lib/active_record/railties/controller_runtime.rb:18:in `process_action'
>       actionpack (4.2.0.rc2) lib/abstract_controller/base.rb:137:in 
> `process'
>       actionview (4.2.0.rc2) lib/action_view/rendering.rb:30:in `process'
>       actionpack (4.2.0.rc2) lib/action_controller/metal.rb:195:in 
> `dispatch'
>       actionpack (4.2.0.rc2) 
> lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
>       actionpack (4.2.0.rc2) lib/action_controller/metal.rb:236:in `block 
> in action'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/routing/route_set.rb:42:in `serve'
>       actionpack (4.2.0.rc2) lib/action_dispatch/journey/router.rb:43:in 
> `block in serve'
>       actionpack (4.2.0.rc2) lib/action_dispatch/journey/router.rb:30:in 
> `serve'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/routing/route_set.rb:802:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       xray-rails (0.1.14) lib/xray/middleware.rb:37:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       omniauth (1.2.2) lib/omniauth/strategy.rb:186:in `call!'
>       omniauth (1.2.2) lib/omniauth/strategy.rb:164:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       omniauth (1.2.2) lib/omniauth/strategy.rb:186:in `call!'
>       omniauth (1.2.2) lib/omniauth/strategy.rb:164:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       omniauth (1.2.2) lib/omniauth/strategy.rb:186:in `call!'
>       omniauth (1.2.2) lib/omniauth/strategy.rb:164:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       meta_request (0.3.3) 
> lib/meta_request/middlewares/app_request_handler.rb:13:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       rack-contrib (1.1.0) lib/rack/contrib/response_headers.rb:17:in 
> `call'
>       meta_request (0.3.3) lib/meta_request/middlewares/headers.rb:16:in 
> `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       meta_request (0.3.3) 
> lib/meta_request/middlewares/meta_request_handler.rb:13:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       newrelic_rpm (3.9.0.229) lib/new_relic/rack/error_collector.rb:50:in 
> `traced_call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:55:in `call'
>       newrelic_rpm (3.9.0.229) lib/new_relic/rack/agent_hooks.rb:26:in 
> `traced_call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:55:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/rack/browser_monitoring.rb:19:in `traced_call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:55:in `call'
>       newrelic_rpm (3.9.0.229) lib/new_relic/rack/developer_mode.rb:48:in 
> `traced_call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:55:in `call'
>       warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
>       warden (1.2.3) lib/warden/manager.rb:34:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       rack (1.6.0.beta2) lib/rack/etag.rb:24:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       rack (1.6.0.beta2) lib/rack/conditionalget.rb:25:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       rack (1.6.0.beta2) lib/rack/head.rb:13:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/middleware/params_parser.rb:27:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/middleware/flash.rb:260:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       rack (1.6.0.beta2) lib/rack/session/abstract/id.rb:225:in `context'
>       rack (1.6.0.beta2) lib/rack/session/abstract/id.rb:220:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/middleware/cookies.rb:560:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       activerecord (4.2.0.rc2) lib/active_record/query_cache.rb:36:in 
> `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       activerecord (4.2.0.rc2) 
> lib/active_record/connection_adapters/abstract/connection_pool.rb:647:in 
> `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:88:in 
> `_run_callbacks'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:734:in 
> `_run_call_callbacks'
>       activesupport (4.2.0.rc2) lib/active_support/callbacks.rb:81:in 
> `run_callbacks'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/middleware/callbacks.rb:27:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/middleware/reloader.rb:73:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       better_errors (1.1.0) lib/better_errors/middleware.rb:84:in 
> `protected_app_call'
>       better_errors (1.1.0) lib/better_errors/middleware.rb:79:in 
> `better_errors_call'
>       better_errors (1.1.0) lib/better_errors/middleware.rb:56:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       railties (4.2.0.rc2) lib/rails/rack/logger.rb:38:in `call_app'
>       railties (4.2.0.rc2) lib/rails/rack/logger.rb:20:in `block in call'
>       activesupport (4.2.0.rc2) lib/active_support/tagged_logging.rb:68:in 
> `block in tagged'
>       activesupport (4.2.0.rc2) lib/active_support/tagged_logging.rb:26:in 
> `tagged'
>       activesupport (4.2.0.rc2) lib/active_support/tagged_logging.rb:68:in 
> `tagged'
>       railties (4.2.0.rc2) lib/rails/rack/logger.rb:20:in `call'
>       quiet_assets (1.0.3) lib/quiet_assets.rb:23:in 
> `call_with_quiet_assets'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/middleware/request_id.rb:21:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       rack (1.6.0.beta2) lib/rack/methodoverride.rb:22:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       rack (1.6.0.beta2) lib/rack/runtime.rb:18:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       activesupport (4.2.0.rc2) 
> lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       rack (1.6.0.beta2) lib/rack/lock.rb:17:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       actionpack (4.2.0.rc2) 
> lib/action_dispatch/middleware/static.rb:113:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       rack (1.6.0.beta2) lib/rack/sendfile.rb:113:in `call'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       railties (4.2.0.rc2) lib/rails/engine.rb:518:in `call'
>       railties (4.2.0.rc2) lib/rails/application.rb:164:in `call'
>       railties (4.2.0.rc2) lib/rails/railtie.rb:194:in `method_missing'
>       newrelic_rpm (3.9.0.229) 
> lib/new_relic/agent/instrumentation/middleware_tracing.rb:57:in `call'
>       rack (1.6.0.beta2) lib/rack/content_length.rb:15:in `call'
>       thin (1.6.2) lib/thin/connection.rb:86:in `block in pre_process'
>       thin (1.6.2) lib/thin/connection.rb:84:in `pre_process'
>       thin (1.6.2) lib/thin/connection.rb:53:in `process'
>       thin (1.6.2) lib/thin/connection.rb:39:in `receive_data'
>       eventmachine (1.0.3) lib/eventmachine.rb:187:in `run'
>       thin (1.6.2) lib/thin/backends/base.rb:73:in `start'
>       thin (1.6.2) lib/thin/server.rb:162:in `start'
>       rack (1.6.0.beta2) lib/rack/handler/thin.rb:19:in `run'
>       rack (1.6.0.beta2) lib/rack/server.rb:286:in `start'
>       railties (4.2.0.rc2) lib/rails/commands/server.rb:80:in `start'
>       railties (4.2.0.rc2) lib/rails/commands/commands_tasks.rb:80:in 
> `block in server'
>       railties (4.2.0.rc2) lib/rails/commands/commands_tasks.rb:75:in 
> `server'
>       railties (4.2.0.rc2) lib/rails/commands/commands_tasks.rb:39:in 
> `run_command!'
>       railties (4.2.0.rc2) lib/rails/commands.rb:17:in `<top (required)>'
>       script/rails:6:in `<main>'
>
>

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