Session store not set on request.

Hello guys,

Just decided to upgrade one of my projects to 5.2 (from 5.1) as I wanted to continue working on it, I've followed the 5.2 upgrade and believe have everything in order. But I'm getting an error:

RuntimeException in Request.php line 852: Session store not set on request.

After some digging around, the majority of people are suggesting it's because the web middleware is not being used - but I believe I am.

Route::group(['middleware' => ['web']], function () {

    /* -------------------------------------
    #. App
    ------------------------------------- */
    Route::get('/', ['as' => 'home', 'uses' => 'ProductsController@index']);

    /* -------------------------------------
    #. Products
    ------------------------------------- */
    Route::get('products/popular', ['as' => 'products.popular', 'uses' => 'ProductsController@popular']);
    Route::resource('products', 'ProductsController', ['only' => ['index', 'show']]);
    Route::post('products/search', ['as' => 'products.search', 'uses' => 'ProductsController@search']);

    /* -------------------------------------
    #. Categories
    ------------------------------------- */
    Route::resource('categories', 'CategoriesController', ['only' => ['index', 'show']]);

    /* -------------------------------------
    #. Authentication
    ------------------------------------- */    
    Route::get('auth/login', ['as' => 'auth.login', 'uses' => 'Auth\AuthController@getLogin']);
    Route::post('auth/login', ['as' => 'auth.attempt', 'uses' => 'Auth\AuthController@postLogin']);
    Route::get('auth/logout', ['as' => 'auth.logout', 'uses' => 'Auth\AuthController@getLogout']);
    Route::get('profile', ['as' => 'auth.profile', 'uses' => 'Auth\AuthController@getProfile']);

    Route::get('auth/register', ['as' => 'auth.register', 'uses' => 'Auth\AuthController@getRegister']);
    Route::post('auth/register', ['as' => 'auth.register.attempt', 'uses' => 'Auth\AuthController@postRegister']);

    Route::group(['prefix' => 'admin', 'middleware' => 'permitted'], function() {
        // admin routes - removed for thread to decrease crap :)
    });

});

My app/Http/Kernel.php contains the Middleware group too...

protected $middlewareGroups = [
    'web' => [
        \Corespawn\Http\Middleware\EncryptCookies::class,
        \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
        \Illuminate\Session\Middleware\StartSession::class,
        \Illuminate\View\Middleware\ShareErrorsFromSession::class,
        \Corespawn\Http\Middleware\VerifyCsrfToken::class
    ],

    'api' => [
        'throttle:60,1',
    ],
];

At least to my knowledge and per the threads I've come across, this should be correct?

But I still get the error. Any ideas?