# Wie weißen Screen nach Login debuggen?

**URL:** <https://forum.shopware.com/t/wie-weissen-screen-nach-login-debuggen/71798>\
**Category:** Programmierung\
**Created:** [30. Dezember 2020 um 16:11 UTC](https://forum.shopware.com/t/wie-weissen-screen-nach-login-debuggen/71798 "2020-12-30T16:11:36Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Juicy](https://avatars.discourse-cdn.com/v4/letter/j/74df32/32.png) [@Juicy](https://forum.shopware.com/u/Juicy)\
**Post date:** [30. Dezember 2020 um 16:11 UTC](https://forum.shopware.com/t/wie-weissen-screen-nach-login-debuggen/71798/1 "2020-12-30T16:11:36Z")

</div>

Hallo,&nbsp;

ich gehe gerade das folgende Tutorial durch:&nbsp;[Shopware 6: Step 5: Adding associations to the entity](https://docs.shopware.com/en/shopware-platform-dev-en/how-to/indepth-guide-bundle/entity-association?category=shopware-platform-dev-en/how-to/indepth-guide-bundle)

Nach dem ich die Migration eingespielt habe und die Entities (bundle, bundle\_translation und bundle\_product) registriert&nbsp;habe bekomme ich einen weißen Bildschirm im Backend nach dem Login,

Errrorlog nach dem Login bekommt folgende Einträge:&nbsp;

```
[2020-12-30 15:48:10] php.INFO: User Deprecated: The "Symfony\Component\Debug\DebugClassLoader" class is deprecated since Symfony 4.4, use "Symfony\Component\ErrorHandler\DebugClassLoader" instead. {"exception":"[object] (ErrorException(code: 0): User Deprecated: The \"Symfony\\Component\\Debug\\DebugClassLoader\" class is deprecated since Symfony 4.4, use \"Symfony\\Component\\ErrorHandler\\DebugClassLoader\" instead. at /var/www/html/vendor/symfony/debug/DebugClassLoader.php:16)"} []
[2020-12-30 15:48:10] request.INFO: Matched route "api.oauth.token". {"route":"api.oauth.token","route_parameters":{"_route":"api.oauth.token","auth_required":false,"_controller":"Shopware\\Core\\Framework\\Api\\Controller\\AuthController::token"},"request_uri":"http://localhost/api/oauth/token","method":"POST"} []
[2020-12-30 15:48:12] php.INFO: User Deprecated: The "Symfony\Component\Debug\DebugClassLoader" class is deprecated since Symfony 4.4, use "Symfony\Component\ErrorHandler\DebugClassLoader" instead. {"exception":"[object] (ErrorException(code: 0): User Deprecated: The \"Symfony\\Component\\Debug\\DebugClassLoader\" class is deprecated since Symfony 4.4, use \"Symfony\\Component\\ErrorHandler\\DebugClassLoader\" instead. at /var/www/html/vendor/symfony/debug/DebugClassLoader.php:16)"} []
[2020-12-30 15:48:12] request.INFO: Matched route "administration.index". {"route":"administration.index","route_parameters":{"_route":"administration.index","auth_required":false,"_controller":"Shopware\\Administration\\Controller\\AdministrationController::index"},"request_uri":"http://localhost/admin","method":"GET"} []
[2020-12-30 15:48:13] php.INFO: User Deprecated: The "Symfony\Component\Debug\DebugClassLoader" class is deprecated since Symfony 4.4, use "Symfony\Component\ErrorHandler\DebugClassLoader" instead. {"exception":"[object] (ErrorException(code: 0): User Deprecated: The \"Symfony\\Component\\Debug\\DebugClassLoader\" class is deprecated since Symfony 4.4, use \"Symfony\\Component\\ErrorHandler\\DebugClassLoader\" instead. at /var/www/html/vendor/symfony/debug/DebugClassLoader.php:16)"} []
[2020-12-30 15:48:13] php.INFO: User Deprecated: The "Symfony\Component\Debug\DebugClassLoader" class is deprecated since Symfony 4.4, use "Symfony\Component\ErrorHandler\DebugClassLoader" instead. {"exception":"[object] (ErrorException(code: 0): User Deprecated: The \"Symfony\\Component\\Debug\\DebugClassLoader\" class is deprecated since Symfony 4.4, use \"Symfony\\Component\\ErrorHandler\\DebugClassLoader\" instead. at /var/www/html/vendor/symfony/debug/DebugClassLoader.php:16)"} []
[2020-12-30 15:48:13] php.INFO: User Deprecated: The "Symfony\Component\Debug\DebugClassLoader" class is deprecated since Symfony 4.4, use "Symfony\Component\ErrorHandler\DebugClassLoader" instead. {"exception":"[object] (ErrorException(code: 0): User Deprecated: The \"Symfony\\Component\\Debug\\DebugClassLoader\" class is deprecated since Symfony 4.4, use \"Symfony\\Component\\ErrorHandler\\DebugClassLoader\" instead. at /var/www/html/vendor/symfony/debug/DebugClassLoader.php:16)"} []
[2020-12-30 15:48:13] php.INFO: User Deprecated: The "Symfony\Component\Debug\DebugClassLoader" class is deprecated since Symfony 4.4, use "Symfony\Component\ErrorHandler\DebugClassLoader" instead. {"exception":"[object] (ErrorException(code: 0): User Deprecated: The \"Symfony\\Component\\Debug\\DebugClassLoader\" class is deprecated since Symfony 4.4, use \"Symfony\\Component\\ErrorHandler\\DebugClassLoader\" instead. at /var/www/html/vendor/symfony/debug/DebugClassLoader.php:16)"} []
[2020-12-30 15:48:13] request.INFO: Matched route "api.info.entity-schema". {"route":"api.info.entity-schema","route_parameters":{"_route":"api.info.entity-schema","_controller":"Shopware\\Core\\Framework\\Api\\Controller\\InfoController::entitySchema","version":"2"},"request_uri":"http://localhost/api/v2/_info/entity-schema.json","method":"GET"} []
[2020-12-30 15:48:13] request.INFO: Matched route "api.admin.snippets". {"route":"api.admin.snippets","route_parameters":{"_route":"api.admin.snippets","_controller":"Shopware\\Administration\\Controller\\AdministrationController::snippets","version":"2"},"request_uri":"http://localhost/api/v2/_admin/snippets?locale=en-GB","method":"GET"} []
[2020-12-30 15:48:13] request.INFO: Matched route "api.info.me". {"route":"api.info.me","route_parameters":{"_route":"api.info.me","_controller":"Shopware\\Core\\Framework\\Api\\Controller\\UserController::me","version":"2"},"request_uri":"http://localhost/api/v2/_info/me","method":"GET"} []
[2020-12-30 15:48:13] request.INFO: Matched route "api.info.open-api-schema". {"route":"api.info.open-api-schema","route_parameters":{"_route":"api.info.open-api-schema","auth_required":"0","_controller":"Shopware\\Core\\Framework\\Api\\Controller\\InfoController::openApiSchema","version":"2"},"request_uri":"http://localhost/api/v2/_info/open-api-schema.json","method":"GET"} []

```

&nbsp;

Einzig und alleine beim aufrufen eines console commands bekomme ich die folgend Fehlermeldung:&nbsp;

```
The "Swag\Bundle\Content\Bundle\Aggregate\BundleTranslation\BundleTranslationDefinition" service or alias has been removed or inlined when the container was compiled. You should either make it public, or stop using the container directly and use dependency injection instead.   

```

Wie kann ich solches Verhalten besser debugen? Im Error Log ist kein Hinweis auf ein Problem mit dem Service Container.&nbsp;