PHP-DI invalid definition exception, factory is neither a callable nor a valid container entry

I am trying to use php-di in a project for creating a renderer that renders my default views.

This is how my index.php looks like :

<?php
require "../vendor/autoload.php";
use DIContainerBuilder;
use FrameworkRendererRendererInterface;
use FrameworkRendererTwigRendererFactory;
use function DIfactory;

$builder= new ContainerBuilder();
$builder->addDefinitions([
    RendererInterface::class => factory(TwigRendererFactory::class),
    'views.path'=> dirname(__DIR__) . '/views'
]);
$container= $builder->build();
$renderer= $container->get(RendererInterface::class);//<-- Line causing the error
var_dump($renderer);
die();

My TwigRenderFactory looks like this :

<?php
namespace FrameworkRenderer;
use PsrContainerContainerInterface;
class TwigRendererFactory
{
    public function __invoke(ContainerInterface $container)
    {
        return new TwigRenderer($container->get('views.path'));
    }
}

My directory hierarchy is like this :

+---public
|   |   index.php
+---src
|   +---Blog
|   |   |   BlogModule.php
|   |   ---views
|   |           index.php
|   |           index.twig
|   |           show.php
|   |           show.twig
|   ---Framework
|       |   App.php
|       |   Router.php
|       |   TwigRendererFactory.php
|       +---Renderer
|       |       PHPRenderer.php
|       |       RendererInterface.php
|       |       TwigRenderer.php
|       ---Router
|               Route.php
+---vendor   
---views
        footer.php
        header.php
        layout.twig
    

And I have my autoload set in my composer.json like this :

"autoload": {
    "psr-4": {
        "Framework\": "src/Framework",
        "App\": "src",
        "Tests\": "tests"
    }
},

With this setup I get this exception from php-di :

Fatal error: Uncaught DIDefinitionExceptionInvalidDefinition:
Entry "FrameworkRendererRendererInterface" cannot be resolved:
factory 'Framework\Renderer\TwigRendererFactory' is neither a callable nor a valid container entry in E:____MQBAKAPOO-pratiquevendorphp-diphp-disrcDefinitionResolverFactoryResolver.php:91
Stack trace:
#0 E:____MQBAKAPOO-pratiquevendorphp-diphp-disrcDefinitionResolverResolverDispatcher.php(71): DIDefinitionResolverFactoryResolver->resolve(Object(DIDefinitionFactoryDefinition), Array)
#1 E:____MQBAKAPOO-pratiquevendorphp-diphp-disrcContainer.php(390): DIDefinitionResolverResolverDispatcher->resolve(Object(DIDefinitionFactoryDefinition), Array)
#2 E:____MQBAKAPOO-pratiquevendorphp-diphp-disrcContainer.php(139): DIContainer->resolveDefinition(Object(DIDefinitionFactoryDefinition))
#3 E:____MQBAKAPOO-pratiquepublicindex.php(23): DIContainer->get('Framework\Rende...')
#4 {main} thrown in E:____MQBAKAPOO-pratiquevendorphp-diphp-disrcDefinitionResolverFactoryResolver.php on line 91

I’ve double-checked everything that I could, I tried to put an echo inside the __invoke() method of the TwigRendererFactory class but it seems the __invoke() method is never called for some reason so I don’t know what to do.