Why can't I copy a file across a network?

Question

I am having a very peculiar problem copying a simple text file across a network.  The problem occurs when I try to copy from a newly purchased and newly upgraded MacBook (13 inch aluminum 08) to a 2010 Mac mini.
When I try to copy from the MacBook to the mini, Document folder to Document folder, I get this message:
    A new item named “filename” already exists in this location.  Do you want to replace it with the one you’re moving?
If I click Replace, I get this message.
     The operation can’t be completed because an item with the name “” already exists.
If I click Keep Both, the process begins to create thousands (yes thousands!) of numbered copy files with the same file name and zero contents.
Copying from the MacBook to a different Mac works normally.
The problem, I suppose, stems from the fact that I migrated my user account from the Mac mini to the MacBook.  But, I’ve done that before without a problem, so what is happening?
I also suppose that the solution is to delete the migrated user account on the MacBook and create a new one, but that’s a nuisance.
Can anyone solve this puzzle?
Thanks-
Robin

Answer 1

Sorry I couldn't help.  You mention copying a simple text file, then mention ~/Documents to ~/Documents, then finally mention migration assistant.
It's honestly not too clear what you're tyring to accomplish.  Do you have mutliple user accounts now and you want to thin them down?  Do you simply want to get your Documents from the mini to the new computer?  I copy between Macs all the time (ML to Mavericks, Mavericks to Mavericks).  The worst thing I've faced is the need to reset home permissions and ACLs.
Many of the guru's who frequent the Mavericks area also come here.  I'm sure one of them can help.  Good luck.