---
title: "TYPO3 Exception 1439552058"
manual: "TYPO3 Exceptions"
version: "main"
permalink: "https://docs.typo3.org/permalink/t3exceptions:typo3-exception-1439552058"
source: "Exceptions/1439552058.rst"
modified: "2026-09-16T07:39:08+00:00"
---

# TYPO3 Exception 1439552058

> [!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).

## The extension "..." has invalid version constraints in depends section. Extension key is missing!

-   To fix this, go to your TYPO3 Installation directory, go to
    `typo3conf/ext/...` and edit `ext_emconf.php` and
    delete the line in the `depends` section, which neither contains
    any extension key nor any version, but only an empty array key with
    empty array value (`' ' => ' ',`). In my case this was line 31. ->
    Save the file.
-   After this go to your TYPO3 backend, go to the **extensions**
    subcategory and enable the extension by clicking the box in front of this entry.
-   Refresh your page, and you should be fine.