Symfony Error: "An exception has been thrown during the rendering of a template"

PHP Snippet 1:

yarn add --dev @symfony/webpack-encore

yarn add webpack-notifier --dev

yarn encore dev

PHP Snippet 2:

framework:
    assets: ~
        #json_manifest_path: '%kernel.project_dir%/public/build/manifest.json'

PHP Snippet 3:

# app/config/config.yml
framework:
    # ...
    assets:
        json_manifest_path: '%kernel.root_dir%/../web/build/manifest.json'

PHP Snippet 4:

framework:
    assets: ~
        #json_manifest_path: '%kernel.project_dir%/public/build/manifest.json'

PHP Snippet 5:

/**
 * @Route("/", name="home")
 */
public function home() {
    return $this->render('blog/home.html.twig', [
        'title' => "Bienvenue",
        'logo_path' => "logo_mom.png",
        'logo_alt' => "logo alt description",
    ]);
}

PHP Snippet 6:

{% block body %}
    <h1>{{ title }}</h1>
    <img src={{ logo_path }} alt={{ logo_alt}}>

PHP Snippet 7:

<link rel="icon" type="image/x-icon" href="favicon.ico" />

Symfony Error: "An exception has been thrown during the rendering of a template"

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