Ruby On Rails Routing Error (was previously working) - ruby-on-rails

Question

So I'm working on a project and I want to create new subcategory. The link was working but I'm not getting the following error:
No route matches {:action=>"show", :controller=>"subcategories"}
The project is fairly new so my routes file is very simple:
Mrprice::Application.routes.draw do
get "admin/index" => 'admin#index'
resources :products
resources :subcategories
resources :categories
root to: 'store#index', as: 'root'
end
In my view:
<%= link_to 'New Subcategory', new_subcategory_path %>
I'm sure there's a typo somewhere or else the solution is very simple but I can't for the life of me figure it out.
I hope I've given enough information and that someone here knows what the problem is!
edit: subcategories_controller.rb (relevant methods)
def show
#subcategory = Subcategory.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.json { render json: #subcategory }
end
end
def new
#subcategory = Subcategory.new
respond_to do |format|
format.html # new.html.erb
format.json { render json: #subcategory }
end
end
def create
#subcategory = Subcategory.new(params[:subcategory])
respond_to do |format|
if #subcategory.save
format.html { redirect_to #subcategory, notice: 'Subcategory was successfully created.' }
format.json { render json: #subcategory, status: :created, location: #subcategory }
else
format.html { render action: "new" }
format.json { render json: #subcategory.errors, status: :unprocessable_entity }
end
end
end
rake routes gives:
admin_index GET /admin/index(.:format) admin#index
products GET /products(.:format) products#index
POST /products(.:format) products#create
new_product GET /products/new(.:format) products#new
edit_product GET /products/:id/edit(.:format) products#edit
product GET /products/:id(.:format) products#show
PUT /products/:id(.:format) products#update
DELETE /products/:id(.:format) products#destroy
subcategories GET /subcategories(.:format) subcategories#index
POST /subcategories(.:format) subcategories#creat
new_subcategory GET /subcategories/new(.:format) subcategories#new
edit_subcategory GET /subcategories/:id/edit(.:format) subcategories#edit
subcategory GET /subcategories/:id(.:format) subcategories#show
PUT /subcategories/:id(.:format) subcategories#updat
DELETE /subcategories/:id(.:format) subcategories#destr
categories GET /categories(.:format) categories#index
POST /categories(.:format) categories#create
new_category GET /categories/new(.:format) categories#new
edit_category GET /categories/:id/edit(.:format) categories#edit
category GET /categories/:id(.:format) categories#show
PUT /categories/:id(.:format) categories#update
DELETE /categories/:id(.:format) categories#destroy
root / store#index
note: not sure how to fix the formatting - I already tried a code block

Answer 1

Okay so I finally figured it out!
The problem was a routing error on the new subcategory form.
I had:
<%= link_to "Subcategories Home", subcategories_index_path %>
I know this was incorrect so I changed it to:
<%= link_to "Subcategories Home", subcategories_url %>
Mostly I just went through Rails Routing from the Outside In with a fine toothed comb until I figured out the correct way to route back to subcategories#index.