Could not display interface. Please check definition and inputs.
Interface Definition: Expression evaluation error at function a!forEach [line 45]: Error in a!forEach() expression during iteration 1: Expression evaluation error at function 'choose'

Question

I have the following error, 
 I am trying to display readOnly info on UI based on a decision table.Decision table have proper values and working good. 
 Please help me on how to understand this error.

matthew.shutt · Accepted Answer

`wherecontains` returns `List of Number (Integer)` and `Choose` requires an `Integer`. 
 This may be causing the error. 
 The example in the docs for choose shows a solution to this. https://docs.appian.com/suite/help/19.1/fnc_logical_choose.html 
 choose(
 wherecontains(ri!rating, {"Poor","Satisfactory","Excellent"})[1],
 mod(rand() * 10, 5),
 mod(rand() * 10, 5) + 4,
 10 - mod(rand() * 10, 2)
)

Could not display interface. Please check definition and inputs. Interface Definition: Expression evaluation error at function a!forEach [line 45]: Error in a!forEach() expression during iteration 1: Expression evaluation error at function 'choose'

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