Save For Web Error in Photoshop on macOS

Hi,

We're sorry about the trouble due to the error while using Save for web in Photoshop. Would you mind telling us which version of Photoshop you're using along with your computers operating system? Since when are you facing this issue?

You can check out the steps suggested here: https://feedback.photoshop.com/conversations/photoshop/photoshop-2103-save-for-web-error-could-not-complete-this-operation-an-unknown-error-has-occurred-on-mac-10152/5f5f46224b561a3d427554c4

You can also check out: https://community.adobe.com/t5/photoshop/save-for-web-error/m-p/8939936

Let us know if it helps!

Regards,

Nikunj