Please ignore the error message. I probably shouldn't have put it in the original post. I have gotten at least a dozen different errors while trying out different combinations of xpath expressions. What I am really wanting is someone to tell me if what I am trying to do is impossible using XSL. One ...

What I am trying to accomplish is determine that the copiedItemRecKey is not empty and also determine whether the value in copiedItemRecKey exists in any other items by checking the value in the primaryKey of all the other items. If the node count is greater than zero then one of the items has the s...