Slim Application Error Message || PLEASE HELP || Slim v3.2

Hi Romuald, I've had the same problem. Of course it's possible to install the same version of Slim as in the video, but i thought it would be nice to be able to use the latest version too. Here's the solution I've found so far. It works, but it may not be the slimmest solution out there. Don't forget to install the 'slim/twig-view' package in Composer before running it. Here's my code:

<?php
require __DIR__ . '/vendor/autoload.php';
date_default_timezone_set('Europe/Berlin');

$app = new \Slim\App(['settings' => ['displayErrorDetails' => true]]);

// Get container
$container = $app->getContainer();

// Register component on container
$container['view'] = function ($container) {
    $view = new \Slim\Views\Twig('template', [
        'cache' => false
    ]);
    $view->addExtension(new \Slim\Views\TwigExtension(
        $container['router'],
        $container['request']->getUri()
    ));

    return $view;
};

// Render Twig template in route
$app->get('/', function ($request, $response, $args) {
    return $this->view->render($response, 'index.html'
    );
});

$app->get('/contact', function ($request, $response, $args) {
    return $this->view->render($response, 'contact.html'
    );
});

$app->run();

Have a look at this page, that's where i took most of this code from, and it explains everything: http://www.slimframework.com/docs/features/templates.html

I hope this helps.

Following the steps the instructor provided, you'll install v3+ which means the steps he's guiding us through won't work. While it would be ideal if the videos were updated to teach the current version of SLIM & ensure that the steps he's guiding us through are accurate, who knows if and when that will happen. Until it does, you can install SLIM v2.6 to follow along:

1. Delete your SLIM directory in your workspace
2. Go to your console
3. Enter "composer require"
4. Search for package: SLIM
5. Choose option 0 (Slim/Slim)
6. Version Constraint: 2.6

Specifying 2.6 will ensure you're following along with the version the instructor is using.

Did you already tried to get access through localhost/index.php/contact ?

Also, I found solution of your problem here:

$settings =  [
    'settings' => [
        'displayErrorDetails' => true,
    ],
];

$app = new Slim\App($settings);

Hope this will help

The code used in this video is useless with Slim 3, because the way it renders templates is completely different now.

You have 2 ways to go about it: either using Twig-View, like yannm did, or using PHP-View.

In case you're interested, here's the code for using PHP-View (don't forget to install the component first):

<?php

require __DIR__ . '/vendor/autoload.php';
date_default_timezone_set('Europe/Lisbon');

$app = new \Slim\App(['settings' => ['displayErrorDetails' => true]]);

// Get container
$container = $app->getContainer();

// USING PHP-VIEW

// Register component on container
$container['view'] = function ($container) {
    return new \Slim\Views\PhpRenderer('templates/');
};

// Render template in route
$app->get('/', function ($request, $response) {
    return $this->view->render($response, 'index.html');
});

$app->get('/contact', function ($request, $response) {
    return $this->view->render($response, 'contact.html');
});

// Run app
$app->run();

//That's it!

PS: yannm, your code can be trimmed a bit. You don't need the cache declaration when registering the component on the container, nor the $args parameter in the the $app->get function.