Clicking on un-mount / eject symbol in Nautilus yields error

Error: Unhandled error message: No such interface `org.gtk.vfs.Mount' on object at path /org/gtk/vfs/mount/1

Still happens in the new gnome-3 update received last week of May.

Reviewing the information I submitted earlier, I forgot to mention that I mount the share using Nautilus

I receive this same error message when unmounting (disconnecting) from an FTP connection in Nautilus.

This only started happening when I upgraded to Ubuntu 13.10 from 13.04.

One thing I noticed is that I only receive this error when clicking the eject symbol. When I right click on the network and select the Un-mount option, it unmounts without an errors.

I also have this problem on 13.10, and only when klicking un the eject symbol.

Yes, I get the same error messages too. But as Bart wrote, only when using the eject symbol. When right clicking, and selecting unmount from the menu, it works.

I get the same error when clicking the eject-symbol on a mounted Android phone (Galaxy S3 Mini). As mentioned earlier, using right-click -> unmount works without errors.

I'm using Ubuntu 13.10, GNOME Shell 3.8.4 and GNOME nautilus 3.8.2.

These are the corresponding syslog lines:

(Plugging Android device in)

Dec 29 15:23:04 schwarzekiste kernel: [ 39.619726] usb 1-4: new high-speed USB device number 4 using ehci-pci
Dec 29 15:23:04 schwarzekiste kernel: [ 39.753127] usb 1-4: New USB device found, idVendor=04e8, idProduct=6860
Dec 29 15:23:04 schwarzekiste kernel: [ 39.753132] usb 1-4: New USB device strings: Mfr=2, Product=3, SerialNumber=4
Dec 29 15:23:04 schwarzekiste kernel: [ 39.753134] usb 1-4: Product: Android
Dec 29 15:23:04 schwarzekiste kernel: [ 39.753135] usb 1-4: Manufacturer: Samsung
Dec 29 15:23:04 schwarzekiste kernel: [ 39.753137] usb 1-4: SerialNumber: XXXXXXXXXXXXXXXXX
Dec 29 15:23:04 schwarzekiste colord: Device added: sysfs-Samsung-Android
Dec 29 15:23:09 schwarzekiste dbus[488]: [system] Activating service name='org.freedesktop.hostname1' (using servicehelper)
Dec 29 15:23:09 schwarzekiste dbus[488]: [system] Successfully activated service 'org.freedesktop.hostname1'
Dec 29 15:23:17 schwarzekiste whoopsie[996]: online
Dec 29 15:23:39 schwarzekiste kernel: [ 74.482857] perf samples too long (2505 > 2500), lowering kernel.perf_event_max_sample_rate to 50000

(Clicking eject)

Dec 29 15:23:42 schwarzekiste kernel: [ 77.978892] ------------[ cut here ]------------
Dec 29 15:23:42 schwarzekiste kernel: [ 77.978904] WARNING: CPU: 2 PID: 2646 at /build/buildd/linux-3.11.0/drivers/usb/host/ehci-hcd.c:1038 ehci_endpoint_reset+0x101/0x110()
Dec 29 15:23:42 schwarzekiste kernel: [ 77.978905] clear_halt for a busy endpoint
Dec 29 15:23:42 schwarzekiste kernel: [ 77.978907] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) snd_hda_codec_hdmi intel_powerclamp kvm_intel(F) kvm(F) gpio_ich parport_pc(F) ppdev(F) rfcomm bnep bluetooth snd_hda_codec_realtek microcode(F) snd_hda_intel snd_hda_codec serio_raw(F) snd_hwdep(F) snd_pcm(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_page_alloc(F) snd_seq(F) lpc_ich snd_seq_device(F) snd_timer(F) snd(F) nvidia(POF) soundcore(F) drm coretemp mac_hid mei_me mei lp(F) parport(F) pata_acpi hid_generic usbhid hid usb_storage(F) firewire_ohci firewire_core crc_itu_t(F) r8169 mii(F) pata_jmicron ahci(F) libahci(F)
Dec 29 15:23:42 schwarzekiste kernel: [ 77.978944] CPU: 2 PID: 2646 Comm: pool Tainted: PF O 3.11.0-14-generic #21-Ubuntu
Dec 29 15:23:42 schwarzekiste kernel: [ 77.978946] Hardware name: Gigabyte Technology Co., Ltd. H55M-USB3/H55M-USB3, BIOS F11 11/01/2010
Dec 29 15:23:42 schwarzekiste kernel: [ 77.978947] 0000000000000009 ffff8801d6559d08 ffffffff816e593a ffff8801d6559d50
Dec 29 15:23:42 schwarzekiste kernel: [ 77.978951] ffff8801d6559d40 ffffffff81061dbd 0000000000000003 0000000000000086
Dec 29 15:23:42 schwarzekiste kernel: [ 77.978953] ffff880210410800 ffff880210410a84 0000000000000246 ffff8801d6559da0
Dec 29 15:23:42 schwarzekiste kernel: [ 77.978956] Call Trace:
Dec 29 15:23:42 schwarzekiste k...