Problem with start

Hi, I was only looking for a fairly simple framework for PHP. Well, I decided to try ‘SLIM’. Right now I’m not sure it was the right choice.
I installed it with composer and everything went well until the first example in the documentation

<?php

use Slim\Factory\AppFactory;

use Psr\Http\Message\ServerRequestInterface as Request;

use Psr\Http\Message\ResponseInterface as Response;

require __DIR__ . '/../vendor/autoload.php';

$app = AppFactory::create();

$app->get('/', function (Request $request, Response $response, $args) {

    $response->getBody()->write('Hello world!');
    return $response;
});
$app->get('/hello/{name}', function (Request $request, Response $response, $args) {
    $name=$args['name'];
    $response->getBody()->write("Hello $name!");
    return $response;
});
$app->run();

and I’ve got immidiately

Fatal error: Uncaught Slim\Exception\HttpNotFoundException: 
Not found. in /home/zbigi/domains/mai.grin.net.pl/vendor/slim/slim/Slim/Middleware/RoutingMiddleware.php:91 
Stack trace: 

#0 /home/zbigi/domains/mai.grin.net.pl/vendor/slim/slim/Slim/Routing/RouteRunner.php(72): Slim\Middleware\RoutingMiddleware->performRouting(Object(GuzzleHttp\Psr7\ServerRequest)) 
#1 /home/zbigi/domains/mai.grin.net.pl/vendor/slim/slim/Slim/MiddlewareDispatcher.php(81): Slim\Routing\RouteRunner->handle(Object(GuzzleHttp\Psr7\ServerRequest)) 
#2 /home/zbigi/domains/mai.grin.net.pl/vendor/slim/slim/Slim/App.php(215): Slim\MiddlewareDispatcher->handle(Object(GuzzleHttp\Psr7\ServerRequest)) 
#3 /home/zbigi/domains/mai.grin.net.pl/vendor/slim/slim/Slim/App.php(199): Slim\App->handle(Object(GuzzleHttp\Psr7\ServerRequest)) 
#4 /home/zbigi/domains/mai.grin.net.pl/public_html/index.php(15): Slim\App->run() 	
#5 {main} thrown in /home/zbigi/domains/mai.grin.net.pl/vendor/slim/slim/Slim/Middleware/RoutingMiddleware.php on line 91

ok, read forums, make change in .httacces and went to the second example with before and after middelware and promptly got next error

Fatal error: Uncaught Slim\Exception\HttpNotFoundException: Not found. in /home/zbigi/domains/mai.grin.net.pl/vendor/slim/slim/Slim/Middleware/RoutingMiddleware.php:91 Stack trace: \t	
#0 /home/zbigi/domains/mai.grin.net.pl/vendor/slim/slim/Slim/Routing/RouteRunner.php(72): Slim\Middleware\RoutingMiddleware->performRouting(Object(GuzzleHttp\Psr7\ServerRequest)) \t	
#1 /home/zbigi/domains/mai.grin.net.pl/public_html/index.php(12): Slim\Routing\RouteRunner->handle(Object(GuzzleHttp\Psr7\ServerRequest)) \t	
#2 /home/zbigi/domains/mai.grin.net.pl/vendor/slim/slim/Slim/MiddlewareDispatcher.php(313): {closure}(Object(GuzzleHttp\Psr7\ServerRequest), Object(Slim\Routing\RouteRunner)) \t	
#3 /home/zbigi/domains/mai.grin.net.pl/public_html/index.php(22): class@anonymous->handle(Object(GuzzleHttp\Psr7\ServerRequest)) 
#4 /home/zbigi/domains/mai.grin.net.pl/vendor/slim/slim/Slim/MiddlewareDispatcher.php(313): {closure}(Object(GuzzleHttp\Psr7\ServerRequest), Object(class@anonymous)) 
5 /home/zbigi/domains/mai.grin.net.pl/vendor/slim/slim/Slim/Middlewa in /home/zbigi/domains/mai.grin.net.pl/vendor/slim/slim/Slim/Middleware/RoutingMiddleware.php on line 91

I have a question, will it be like this all the time and each step has a thousand errors? Is it better to quit and look for something more elaborate.

If you’re just getting started with Slim I’d suggest you start with the skeleton app rather than trying to configure your own: GitHub - slimphp/Slim-Skeleton: Slim Framework 4 Skeleton Application