new proj symfony win

php composer.phar create-project symfony/framework-standard-edition test.test
php composer.phar create-project symfony/framework-standard-edition testproj @stable
or
>php -r "file_put_contents('symfony', file_get_contents('https://symfony.com/installer'));"
>php symfony new test.test

>php console generate:bundle --namespace=A1/TestBundle
Fatal error: \app\AppKernel.php on line 19
edit composer.json
"autoload": {
        "psr-4": {
            "": "src/"
        },
        "classmap": [
            "app/AppKernel.php",
            "app/AppCache.php"
        ]
    }

>php composer.phar dump-autoload

Edit the composer.json file and register the bundle
  namespace in the "autoload" section:

Add your new bundle to the composer.json file

"autoload": {
    "psr-0": {
        "currentbundle\\": "src/",
        "YOURNEWBUNDLE\\": "src/",
    }
}
You then need to run install on composer again

composer -n install --dev
You should then have both of the bundles autoloaded