Saturday, 09 December 2006


I ran into this issue today. It turned out that the error occured in an expression shape that used xpath to get a value from a message into a variable.

Having been using xpath expressions inside my orchestrations for a long time, I am really not used to having them fail on me :-) And this particular xpath expression was copied from the "Instance XPath" property of the element in the schema editor. So it shouldn't fail. I did add a "[1]" to the xpath because I needed to access the first element of a re-occuring element, but still - not something I hadn't done plenty of times before.

Actually, it took quite some time before I discovered what was wrong. My expression was:

DeliveryDate = xpath(OrderMessage, "/*[local-name..........");

and I needed to change it to

DeliveryDate = xpath(OrderMessage, "string(/*[local-name..........)");

Again, something I have done a million times... this time I just forgot it. And honestly, I really don't think the error message gives a very good idea of what is wrong...

Hope this gets indexed and someone later on will find it helpful :-)


Saturday, 09 December 2006 23:24:28 (Romance Standard Time, UTC+01:00)  #    Comments [13]  | 

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