---
title: "TYPO3 Exception 1365799920"
manual: "TYPO3 Exceptions"
version: "main"
permalink: "https://docs.typo3.org/permalink/t3exceptions:typo3-exception-1365799920"
source: "Exceptions/1365799920.rst"
rendered: "2026-10-05T15:35:48+00:00"
---

# TYPO3 Exception 1365799920 {#typo3-exception-1365799920}

> [!NOTE]
> Below, the TYPO3 community may have provided additional information or
> solutions for this exception. However, these may or may not apply to your
> particular case. If you can provide more information, you should come back
> here and add your experience and solution steps to this issue once you have
> resolved it.
>
> General TYPO3 troubleshooting tips can be found in the *Troubleshooting*
> section in the menu. You can also ask questions and receive support in the
> [TYPO3 Questions category on talk.typo3.org](https://talk.typo3.org/c/typo3-questions/).
>
> To add your experience, click "Edit on GitHub" above and follow the
> ["Edit on GitHub" workflow](https://docs.typo3.org/m/typo3/docs-how-to-document/main/en-us/Howto/EditOnGithub.html#docs-contribute-github-method).
> Also check out
> [our tip on Coding Style and reST](https://docs.typo3.org/permalink/t3exceptions:tip-about-rest-coding-style).

## TYPO3 12.0-dev - 14.08.22 {#typo3-12-0-dev-14-08-22}

### Installation Overview {#installation-overview}

TYPO3 12.0-dev with blog_example extension

### The Issue {#the-issue}

On front end call to the extensions plugin

```text
(1/1) #1365799920 TYPO3\CMS\Extbase\Validation\Exception\NoSuchValidatorException
Validator class FriendsOfTYPO3\ExtbaseExample\Domain\Validator\BlogValidator does not exist
```

### Solution {#solution}

The fully-qualified class name of the validator in the annotation was wrong

Changed annotation from

```php
/**
* Updates an existing blog
*
* @Validate(param="blog", validator="FriendsOfTYPO3\ExtbaseExample\Domain\Validator\BlogValidator")
* @throws NoBlogAdminAccessException
*/
public function updateAction(Blog $blog): ResponseInterface
```

to

```php
/**
* Updates an existing blog
*
* @Validate(param="blog", validator="FriendsOfTYPO3\BlogExample\Domain\Validator\BlogValidator")
* @throws NoBlogAdminAccessException
*/
public function updateAction(Blog $blog): ResponseInterface
```