<p>This turned out to be <a href="https://github.com/craftcms/cms/commit/8634b21f56d00a77c1e9db41816976bf95f1ed86" rel="nofollow noreferrer">a bug</a> and the fix will be in the next release (current version is <code>3.5.15.1</code>).</p>

CC BY-SA 4.0
2020-11-10T12:06:25.647Z
2020-11-10T12:06:25.647Z
Oli
<p>First time we see this: client tried to upload a specific PNG file (that a first sight looks ok) and Craft CMS returned the error 'png_compression_level should be an integer from 0 to 9'</p>
<p><a href="https://i.sstatic.net/J9E2x.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/J9E2x.png" alt="Error message" /></a></p>

<image>
'png_compression_level should be an integer from 0 to 9' upon uploading image
# 'png_compression_level should be an integer from 0 to 9' upon uploading image

(Asked by: username_0 on 2020-11-07)

First time we see this: client tried to upload a specific PNG file (that a first sight looks ok) and Craft CMS returned the error 'png\_compression\_level should be an integer from 0 to 9'

[![Error message](https://i.sstatic.net/J9E2x.png)](https://i.sstatic.net/J9E2x.png)

**Tags:** image

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## 1 answers

### Answer by username_1 on 2020-11-10. Score: 3 | Accepted answer

This turned out to be [a bug](https://github.com/craftcms/cms/commit/8634b21f56d00a77c1e9db41816976bf95f1ed86) and the fix will be in the next release (current version is `3.5.15.1`).


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