Why is Book model not found in laravel?

Question

Laravel

My laravel version is 5.1, I'm doing CRUD according to this article .
Created a model via php artisan make:model Book
And added the following code there:

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Book extends Model
{
    protected $table = 'books';
    protected $fillable = [
        'title',
        'description',
        'author'
    ];
}

I also created the controller using artisan. I
added the following code there:

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use App\Http\Requests;
use App\Http\Controllers\Controller;

class BookController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        $allBooks = Book::all();

        return view('books.bookList', compact('allBooks'));
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        return view('books.addBook');
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(PublishBookRequest $requestData)
    {
        $book = new Book;
        $book->title = $requestData['title'];
        $book->description = $requestData['description'];
        $book->author = $requestData['author'];
        $book->save();

        return redirect()->route('book.index');
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        $book = Book::find($id);

        return view('books.showBook');
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        $book = Book::find($id);

        return view('books.editBook');
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update($id, PublishBookRequest $requestData)
    {
        $book = Book::find($id);

        $book->title = $requestData['title'];
        $book->description = $requestData['description'];
        $book->author = $requestData['author'];
        $book->save();

        return redirect()->route('book.index');
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        Book::find($id)->delete();

        return redirect()->route('book.index');
    }
}

The router is written like this:
Route::resource('book', 'BookController');
The problem is that when you enter an address, for example , crud.local/book , it gives me an error like the "Book" model was not found

, but if you go to http:://crud.local/book/create, then everything comes in, shows a form and a button.
Here are my routes

Maybe I'm not writing the model correctly?

Answer 1

use App\Book;

Answer 2

Use an IDE.
The environment will show you your errors (you forgot to include the class) as soon as you write the code.