Rails Routing Error? 'No route matches' - ruby-on-rails

Question

So I keep running into the following error:
No route matches {:action=>"show", :controller=>"users"}
I tried running rake routes and I can see that the route exists:
user GET /users/:id(.:format) users#show
PUT /users/:id(.:format) users#update
DELETE /users/:id(.:format) users#destroy
But every time I try visiting the page "/users/1" (1 being the user id), I get the above error. Any ideas? Thanks!
Here's my routes.rb:
SampleApp::Application.routes.draw do
root to: 'static_pages#home'
resources :users
resource :sessions, only: [:new, :create, :destroy]
match '/signup', to: 'users#new'
match '/signin', to: 'sessions#new'
match '/signout', to: 'sessions#destroy', via: :delete
match '/help', to: 'static_pages#help'
match '/about', to: 'static_pages#about'
match '/contact', to: 'static_pages#contact'
Here's my users_controller.rb:
class UsersController < ApplicationController
before_filter :signed_in_user, only: [:index, :edit, :update]
before_filter :correct_user, only: [:edit, :update]
def show
#user = User.find(params[:id])
end
def new
#user = User.new
end
def create
#user = User.new(params[:user])
if #user.save
sign_in #user
flash[:success] = "Welcome to the Paper Piazza!"
redirect_to #user
else
render 'new'
end
end
def edit
#user = User.find(params[:id])
end
def update
if #user.update_attributes(params[:user])
flash[:success] = "Profile updated"
sign_in #user
redirect_to #user
else
render 'edit'
end
end
def index
#users = User.paginate(page: params[:page])
end
private
def signed_in_user
unless signed_in?
store_location
redirect_to signin_path, notice: "Please sign in."
end
end
def correct_user
#user = User.find(params[:id])
redirect_to(root_path) unless current_user?(#user)
end
end

Answer 1

Try fixing the typo:
root :to 'static_pages#home'
(rather than root to:), and moving it to the last line of the block. And let me know if that makes a difference!
What's odd is that I built a fresh project with a routing file that simply reads:
RoutingTest::Application.routes.draw do
resources :users
root :to => "static_pages#home"
end
When I ran this in the console, I got the same error you're seeing:
>> r = Rails.application.routes ; true
=> true
>> r.recognize_path("/users/1")
=> ActionController::RoutingError: No route matches "/users"
... but when I run the same thing in a slightly older project, I get:
>> r = Rails.application.routes ; true
=> true
>> r.recognize_path("/users/1")
=> {:action=>"show", :controller=>"users", :id=>"1"}
So I have little confidence that what I'm telling you will make a difference. (Aside from that, the Rails.application.routes trick is useful for verifying paths in the console!)

Answer 2

I had a similar problem, I had routes that would just return the root page, but would show up in rake routes. According to a fellow developer for a specific namespace and for all routes the root to: (routing) must always be last. This is in contradiction to the Rails guide on routing (see http://guides.rubyonrails.org/routing.html#using-root) which says that any call to root should be at the top of your file. That was definitely not working for me. Interesting...