I've had this happen with 7.1 before. A simple fix is probably to go to the "Services" on the server and "Stop" then "Start" the ARIS Business Publisher Server.
thank you for your comment, I tried this, but error still persist... :-(
delete the unwanted exports first and restart the service and try the new export it will work.
there are no exports in my Publisher... Because I uninstalled Business Publisher, then I installed a newer version.
Did you ever get an answer to this issue? I am having the exact same issue right now. Publisher was working a few days ago but it recently failed.
I installed BP to other directory and it works. I don't know where was problem... But I got error "The procedure was canceled" a few seconds after starting export and I see you got this during transferring attributes. Did you add any new custom attribute or fill attribute values last days?
Our issue was actually disk space. I didn't have access to the server so I had no idea until I contacted the sys admins.