On 07/03/2020 07:40, kaye n wrote:
*What happens if, as a test, you select Thunar as your preferred file manager, and then double-click on the Trash icon?* It opens!
This confirms that the problem is in spacefm, not Thunar or Xfce. I was able to reproduce the behaviour you report on a buster live image after installing spacefm. I am not familiar with spacefm, but seems that it does not support Trash, trash:/// urls, or any other part of the Freedesktop.org Trash specification. There are some community plugins for Trash support, but I think you also need handler support to get trash:/// urls to work.
I have updated the title to draw attention from anyone who might be able to help with spacefm.
Kind regards, -- Ben Caradoc-Davies <ben@transient.nz> Director Transient Software Limited <https://transient.nz/> New Zealand