I have 3 ssds and I am getting error "no object for D-Bus interface" when trying to mount them.
I have been using Disks to mount them.
I have searched the net but have not found a solution.
Tried accessing them first in Gparted as suggested in one post but that too fails.
Also tried getting a new UUID via Gparted and it still didn't work.
These are just data drives so I don't have them mounted all the time, just when backing up.
Funny thing is sometimes it works but very rarely.

If you don't even see them in gparted there is something really wrong.
Have you checked in the computer's firmware if the SATA controller is set to AHCI mode as suggested on the help center ?

    kyrios
    Hi Kyrios, sorry if I wasn't clear.
    I can see them fine in GParted. I only mentioned that because one post said to try assigning a new UUID.
    I can only mount them using Gnome Disk Utility. I have other drives which all mount fine using Nautilus.

      I logged out and then logged back in.
      All three ssd's mounted fine using Nautilus.
      It seems to be hit and miss.
      For the life of me I can't work out what the problem could be.
      As a test I tried to unmount them all with Nautilus.
      Two of them unmounted fine but one gave me the same old "no object for D-bus interface error"