---
title: "TYPO3 Exception 1426448465"
manual: "TYPO3 Exceptions"
version: "main"
permalink: "https://docs.typo3.org/permalink/t3exceptions:typo3-exception-1426448465"
source: "Exceptions/1426448465.rst"
rendered: "2026-10-30T07:15:30+00:00"
---

# TYPO3 Exception 1426448465 {#typo3-exception-1426448465}

> [!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 v12.4, 18.06.2024 {#typo3-v12-4-18-06-2024}

```plaintext
#1426448465 RuntimeException
Field must not be empty
```

This error happened after updating from TYPO3 v10.4 when trying to edit a files
metadata in the "Filelist" module.

There was an invalid entry in the TCA of `sys_file_metadata`. In TYPO3 v10
the falsely declared div title was not displayed and ignored. In TYPO3 v12.4
this error was thrown.

### Solution: Fix TCA of `sys_file_metadata` {#solution-fix-tca-of-sys-file-metadata}

Items in TCA `showitem` must be separated by comma `,` not semicolon `;`. A
divider `--div--` must start with this string after the previous comma.

```diff
$GLOBALS['TCA']['sys_file_metadata']['types'][1] = [
    'showitem' => $GLOBALS['TCA']['sys_file_metadata']['types'][1]['showitem']
-        . ';--div--;My-Cool-Center,my_cool_center_enable',
+        . ',--div--;My-Cool-Center,my_cool_center_enable,',
];
```

## Unknown TYPO3 Version {#unknown-typo3-version}

### Field must not be empty {#field-must-not-be-empty}

Error in TCA configuration. E.g. in section `types['1']['showitem']`.

### Possible solution {#possible-solution}

Fix TCA configuration. E.g. `showitem` string. (In my case, the value
was illegally starting with `;;1,`.)