Gvfsd-metadata: g_udev_device_has_property: assertion 'G_UDEV_IS_DEVICE (device)' failed

Support & Help Requests
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Hi!

How can I fix this?

gvfsd-metadata: g_udev_device_has_property: assertion 'G_UDEV_IS_DEVICE (device)' failed

I read I need to patch "meta-daemon.c"

But I can't find that file on Ubuntu Mate 18.04 in Caja via "search"...

Here is the patch I found here:

Patch:
@@ -319,13 +319,15 @@ handle_get_tree_from_device (GVfsMetadata *object,

g_once_init_leave (&gudev_client, g_udev_client_new (NULL));

device = g_udev_client_query_by_device_number (gudev_client, G_UDEV_DEVICE_TYPE_BLOCK, devnum);

if (device != NULL)

{

  if (g_udev_device_has_property (device, "ID_FS_UUID_ENC"))

    res = g_strconcat ("uuid-", g_udev_device_get_property (device, "ID_FS_UUID_ENC"), NULL);

  else if (g_udev_device_has_property (device, "ID_FS_LABEL_ENC"))

    res = g_strconcat ("label-", g_udev_device_get_property (device, "ID_FS_LABEL_ENC"), NULL);

if (g_udev_device_has_property (device, "ID_FS_UUID_ENC"))

res = g_strconcat ("uuid-", g_udev_device_get_property (device, "ID_FS_UUID_ENC"), NULL);

else if (g_udev_device_has_property (device, "ID_FS_LABEL_ENC"))

res = g_strconcat ("label-", g_udev_device_get_property (device, "ID_FS_LABEL_ENC"), NULL);

g_clear_object (&device);

  g_clear_object (&device);

}

#endif
gvfs_metadata_complete_get_tree_from_device (object, invocation, res ? res : "");

What must I do, which file must I edit to add the patch?

Please help, thanks!