"Error splicing file: Protocol error" when copying from vbox shared folder into ubuntu guest

[Chris]

Per this forum thread: ​https://forums.virtualbox.org/viewtopic.php?f=6&t=43495

I cannot copy files out of a shared folder onto my guest OS's drive using the gui (Nautilus file manager in Ubuntu 10.04 32 Desktop).

When I do, I get a gui popup of:

Error while copying "..."
There was an error copying the file into ...
Error splicing file: Protocol error

And the file in question has usually been created with a size of zero in the desired final location, but sometimes has never been created at all.

It does work to drag and drop copy into the shared folder from the guest OS's drive, and it works to copy in both directions from the command line.

I am using Windows 7 64 host with Ubuntu 10.04 32 Desktop guest.

This entire setup (same host, same guest virtual machine, same shared folder, same everything) was working completely fine until I upgraded to 4.1.4 (from 4.1.2 and 4.0.* before it).

I do not use auto-mount, I have a line in my /etc/rc.local to mount the shared folder.

As someone else in the aforementioned thread points out, this looks to be an issue with 4.1.4's guest additions, since it only showed up after installing 4.1.4's GA.