Global function works in preview but fails when code is run - anypoint-studio

Question

I have a global function named 'finalPrice' which is defined in my configuration.xml file.
The function takes in a value - does stuff to it - and returns the final value. I reference the function from within DataWeave. When I click 'preview' I can see the correct output in the preview window. However when I run it I get the error:
Message : Exception while executing:
There is no variable named 'finalPrice'.
I have run the code on my local machine and in CloudHub and I get the same result
XML Code:
<configuration doc:name="Configuration">
<expression-language>
<global-functions>
<!-- This function is called by the 'Validate and Transform' dataweave component in the 'main' flow-->
def finalPrice(incoming_value)
{
import java.lang.String;
import java.math.RoundingMode;
// Do Stuff
return strFinalNumber;
}
</global-functions>
</expression-language>
</configuration>
DataWeave Code:
//Refer to "finalPrice" Global Function in the main.xml configuration file
DB_FINL_PRCE: "field_missing" when payload01.DB_FINL_PRCE == "" otherwise finalPrice(payload01.DB_FINL_PRCE)
Any help appreciated

Answer 1

It's an issue with the comments in the global-functions. So remove or modify the line:
<!-- This function is called by the 'Validate and Transform' dataweave component in the 'main' flow-->
and just have:
<configuration doc:name="Configuration">
<expression-language>
<global-functions>
def finalPrice(incoming_value)
{
import java.lang.String;
import java.math.RoundingMode;
// Do Stuff
return strFinalNumber;
}
</global-functions>
</expression-language>
</configuration>
Or modify your comments to //
<configuration doc:name="Configuration">
<expression-language autoResolveVariables="true">
<global-functions>
//This function is called by the 'Validate and Transform' dataweave component in the 'main' flow
def finalPrice(incoming_value)
{
// Do Stuff
return "somethingelse";
}
</global-functions>
</expression-language>
</configuration>