# Preview error in NC 31

**URL:** <https://help.nextcloud.com/t/preview-error-in-nc-31/218562>\
**Category:** ℹ️ Support\
**Tags:** update\_problems, nc31\
**Created:** [February 27, 2025, 10:08am UTC](https://help.nextcloud.com/t/preview-error-in-nc-31/218562 "2025-02-27T10:08:25Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![jtr](https://help.nextcloud.com/letter_avatar/jtr/32/6_22734026db12803ebb3e059622ac3534.png) [@jtr](https://help.nextcloud.com/u/jtr)\
**Post date:** [February 27, 2025, 4:27pm UTC](https://help.nextcloud.com/t/preview-error-in-nc-31/218562/3 "2025-02-27T16:27:46Z")

</div>

> [@M\_M1](#):
>
> Could not resolve OCP\ILogger! Class can not be instantiated "

Chances are this is coming from some force enabled app that isn’t compatible with v31.

But we can’t really say since you didn’t posted enough info.

Post the full raw log entry (which includes a stack trace), as requested in the [support template](https://help.nextcloud.com/t/support-template-please-use-this-when-you-request-support/137402).

---

_[View the full topic](https://help.nextcloud.com/t/preview-error-in-nc-31/218562)._