Union of two polygon datasets fails with cryptic message

Discussion created by joincto on Dec 11, 2013
Latest reply on Dec 16, 2013 by curtvprice
I am trying to take the union of two polygon datasets.
The tools runs for about 2 minutes and then quits with
this error message:

Start Time Wed Dec 11..
Reading Features
Processing Tiles
ERROR 999999: Error executing function
Failed to execute
Failed at Wed Dec 11

Don't you just love error messages like this?
A message whose total explanation amounts to
It didn't work
with no hint of an explanation why not.

Rob Stevens