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Error adding image to card cover

I'm getting an error trying to upload an image to a trello card cover.  It doesn't matter which Image I'm using. When I try to add the card cover image trello responds with

Unable to use imagename as a card cover..  


See this screenshot for ref -


Also, all the images I attach to the card look like this - and don't offer a preview at that level.



5 answers

1 accepted

2 votes
Answer accepted
Michael Pryor
Atlassian Team
Atlassian Team members are employees working across the company in a wide variety of roles.
May 28, 2020 • edited

It was a bug in Trello and it should now be resolved.

This issue is not resolved. The same error message appears as those below have suggested. Trello need to address this or not make this recommendation in their blog and/or help guides.

Michael Pryor
Atlassian Team
Atlassian Team members are employees working across the company in a wide variety of roles.
Mar 14, 2022

The other replies in this post are from 2020. If it is happening to you again (I haven’t seen it pop up since then) it might be most helpful to start a new thread on it so we can track it down. 

Karen Griffin
I'm New Here
I'm New Here
Those new to the Atlassian Community have posted less than three times. Give them a warm welcome!
Feb 11, 2023

I am having this same issue with trying to upload my photos to use as card covers.

@Michael Pryor 
Hello I'm still having the same problem on my Trello Board. I can't set any Gifs as card cover.
The error I'm receiving: "Unable to use <filename>.gif as a card cover".

I tried many different formatters to create the *.gif file. The gif size is below 3 MB. I can upload the gif as an attachment, but can't set it as a cover.

The developer tools error of my browser:

Uncaught (in promise) Error                            index.js:29
at new t (index.js:29)
at Object.error (QueryManager.js:137)
at j (module.js:137)
at w (module.js:176)
at e.t.error (module.js:229)
at Object.error (asyncMap.js:32)
at j (module.js:137)
at w (module.js:176)
at e.t.error (module.js:229)
at asyncMap.js:27

Maybe that helps to find the error.

Same issue here also  :((

same issue here :(

I'm having the exact same problem right now.  Maybe it's not our fault...

All of my attempted attachments are on my local machine.


I'm having the same issue. Making an image into "Cover" is not an available option.

I've restarted, used different browsers, and different file types, all without success.

Like Jennifer Lefeaux likes this

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