Invalid parameter given. A valid $fileId[tmp_name] is expected

Magento 2 Setup
1

Hi, I watched the YouTube Video from Craig --> https://www.youtube.com/watch?v=1eS8OJN-EoM&list=PLQQUd8xe2EWXrgqZwdYhaB0dgmV03gUBc&index=2 and ran into an issue when I was uploading the logos in the section --> “Sales”

Error: Invalid parameter given. A valid $fileId[tmp_name] is expected.

image

Need help!

Thanks a lot.
Best,
Dominik

2

Possibility A

This could be related to a 2.3.3 bug (Ref: Issue 25835). But if it was, I feel like more people would be having this issue.

Possibility B

Try resetting the Owner/Permission/Groups of your Magento install. It might be that Magento can’t create the file it needs to this process to work. Run the following command as a superuser from within the Magento root directory:

sudo find var generated vendor pub/static pub/media app/etc -type f -exec chmod g+w {} + && sudo find var generated vendor pub/static pub/media app/etc -type d -exec chmod g+ws {} + && sudo chown -R magento:www-data . && sudo chmod u+x bin/magento