PL/SQL Function call error while reading or assigning returned value

Question

Hi,
I am getting the following error while tryih to read the value of the PL/SQL Function. I am calling a function in one of my PL/SQL Packages passing mutliple IN parametes and the function returns some value back. Now on BPEL side when I try to read the return value I am getting an error:
*<summary>*
empty variable/expression result.
xpath variable/expression expression "/ns3:OutputParameters/ns3:TEST_FUNCTION" is empty at line 124, when attempting reading/copying it.
Please make sure the variable/expression result "/ns3:OutputParameters/ns3:TEST_FUNCTION" is not empty.
*</summary>*
Even though in the console when I check the Invoke Output Parameter it does shows me a valid value being retuned by a Function but when I am trying to Assgn this value to some variable using Assign Activity I get the above error.
Even though all goes fine but looks like I am not able to read or assign the value returned from the Function.
So just wondering if this even works as to me I have a very simple example and that seems not to work. Function is called successfully and is returning the value as I can see it in the BPEL console but when tryin to read or assign that value to some other variable I get the above error.
Any ideas?
Thanks

Answer 1

This issue has come up a lot. The problem is with a mismatch between the version of JDeveloper and SOA. You'll encounter namespace issues if you use 10.1.3.1 in combination with 10.1.3.3 (or 10.1.3.4). You MUST synchronize both JDev and SOA to 10.1.3.3 or 10.1.3.4 (mixing 10.1.3.3 and 10.1.3.4 is OK). We changed when going to 10.1.3.3 by adding elementFormDefault="qualified" to the generated XSD. We used the default "unqualified" in 10.1.3.1. So you'll encounter namespace issues unless you're using 10.1.3.3 or higher JDev AND SOA. The fact that I see &lt;*db:*...&gt; tells me that you're using 10.1.3.1 JDeveloper. The correct solution is to upgrade your components.