FatalErrorException in Model.php line 857: Class 'TodoItem' not found

\App\TodoItem

            <?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use App\Http\Requests;
use App\Http\Controllers\Controller;
use App\TodoList;
use \App\TodoItem;
use Input;
use Illuminate\Support\Facades\Validator;

class TodoListController extends Controller
{

    /**
     * Display a listing of the resource.
     *
     * @return Response
     */
    public function index()
    {
        $todo_lists = TodoList::all();
        return View('todos.index')->with('todo_lists', $todo_lists);
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return Response
     */
    public function create()
    {
        return View('todos.create');
    }

    /**
     * Store a newly created resource in storage.
     *
     * @return Response
     */
    public function store()
    {
//        $list = new TodoList();
//        $list->name = "Another List";
//        $list->save();
//        return "created a new list";

        // Define rules
        $rules = array(
            'name' => array('required', 'unique:todo_lists')
        );

        // pass input to validator
        $validator = Validator::make(Input::all(), $rules);

        // test if input is valid
        if ($validator->fails()) {

            return redirect()->route('todos.create')->withErrors($validator)->withInput();
        }

        $name = Input::get('name');
        $list = new TodoList();
        $list->name = $name;
        $list->save();

        //return Redirect('todos.index');
        return redirect()->route('todos.index')->withMessage('List was created!');
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return Response
     */
    public function show($id)
    {
        $list = TodoList::findOrFail($id);
        $items = $list->listItems()->get();
        return $items;
        return view('todos.show')->withList($list);
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return Response
     */
    public function edit($id)
    {

        $list = TodoList::findOrFail($id);
        return view('todos.edit')->withList($list);
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  int  $id
     * @return Response
     */
    public function update($id)
    {

        // Define rules
                $rules = array(
                    'name' => array('required', 'unique:todo_lists')
                );

                // pass input to validator
                $validator = Validator::make(Input::all(), $rules);

                // test if input is valid
                if ($validator->fails()) {

                    return redirect()->route('todos.edit', $id)->withErrors($validator)->withInput();
                }

                $name = Input::get('name');
                $list = TodoList::findOrFail($id);
                $list->name = $name;
                $list->update();

                //return Redirect('todos.index');
                return redirect()->route('todos.index')->withMessage('List was updated!');
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return Response
     */
    public function destroy($id)
    {
        $todo_list = TodoList::findOrFail($id)->delete();
        return redirect()->route('todos.index')->withMessage('Item deleted!');
    }
}

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class TodoItem extends Model
{
    public function todoList() {
        return $this->belongsTo('TodoList');
    }
}