Form Nested on non-Modal view

errors.txt

Routing Error

No route matches {:action=>"new", :controller=>"messages"}

Try running rake routes for more information on available routes. 

message.rb

# ...
  belongs_to :user
# ...

routes.rb

# ...
  resources :users do
    resources :messages
  end
# ...

show.html.erb

# In app/views/users/show.html.erb
<div class="formInputWrapper">
  <%= semantic_form_for [@user,@message] do |f| %>
    <%= f.input :content, id: "newMessageInput" %>
    <%= f.button_tag(type: 'button', class: "messageSubmit") do %>
      <%= image_tag("chatSubmit.png") %>
    <% end %>
  <% end %>
</div>

user.rb

# ...
  attribute_accessible :message_attributes # ...
  has_many :messages
  accepts_nested_attributes_for :messages
# ...