PHP Slim\Exception\HttpNotFoundException 404 Not Found and nothing is helping

Question

I'm creating an web app, and I can't move because of Slim 4. It's showing up this error:

Fatal error: Uncaught Slim\Exception\HttpNotFoundException: Not found. in C:\xampp\htdocs\projectfolder\app\vendor\slim\slim\Slim\Middleware\RoutingMiddleware.php:91 Stack trace: #0 C:\xampp\htdocs\projectfolder\app\vendor\slim\slim\Slim\Routing\RouteRunner.php(72): Slim\Middleware\RoutingMiddleware->performRouting(Object(Slim\Psr7\Request)) #1 C:\xampp\htdocs\projectfolder\app\vendor\slim\slim\Slim\MiddlewareDispatcher.php(81): Slim\Routing\RouteRunner->handle(Object(Slim\Psr7\Request)) #2 C:\xampp\htdocs\projectfolder\app\vendor\slim\slim\Slim\App.php(215): Slim\MiddlewareDispatcher->handle(Object(Slim\Psr7\Request)) #3 C:\xampp\htdocs\projectfolder\app\vendor\slim\slim\Slim\App.php(199): Slim\App->handle(Object(Slim\Psr7\Request)) #4 C:\xampp\htdocs\projectfolder\app\index.php(16): Slim\App->run() #5 {main} thrown in C:\xampp\htdocs\projectfolder\app\vendor\slim\slim\Slim\Middleware\RoutingMiddleware.php on line 91

I'm using xampp, there is apache server and I thought the problem was there, in .htacces file, but hell no..

here is how it looks

I've been trying to fix this for more than 4-5 hours, I tried everything I found on google, stackoverflow, Slim's Github, YouTube.. nothing is working.

.htacces

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^ index.php [QSL,L]

My directory

composer.json

index.php below:

use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use Slim\Factory\AppFactory;

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

$app = AppFactory::create();

$app->get('/', function (Request $request, Response $response) {
    $response->getBody()->write("Hello, world!");
    return $response;
});

$app->run();

I do not know what to do anymore, maybe someone can help me and other thousands of people who can't find the answer, or it will be better idea to move and trying another framework..

Answer 1

Set A URL base path detector for Slim 4. Follow steps here https://github.com/selective-php/basepath

<?php

use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use Selective\BasePath\BasePathMiddleware;
use Slim\Factory\AppFactory;

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

$app = AppFactory::create();

// Add Slim routing middleware
$app->addRoutingMiddleware();

// Set the base path to run the app in a subdirectory.
// This path is used in urlFor().
$app->add(new BasePathMiddleware($app));

$app->addErrorMiddleware(true, true, true);

// Define app routes
$app->get('/', function (Request $request, Response $response) {
    $response->getBody()->write('Hello, World!');
    return $response;
})->setName('root');

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

That should work properly.