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A
albertom856
September 22, 2023
Question

Could not display interface. Please check definition and inputs.Interface Definition: Expression evaluation error at function a!forEach [line 3]: Error in a!forEach() expression during iteration 1: Expression evaluation error at function a!isNotNullO

  • September 22, 2023
  • 5 replies
  • 0 views

I have the following error,

I am trying to display a card info on vehicles. Expression rule works properly.

Please help me on how to understand this error.

Thank you.

    5 replies

    stefanhelzle0001
    stefanhelzle0001
    Brainy
    September 22, 2023

    What kind of data does that expression return? Is that a list of records?

    peter.lewis
    peter.lewis
    Employee
    September 22, 2023

    Yeah this makes me think that the type of data in your local variable doesn't match the record fields you're indexing from in line 16. Also keep in mind that functions that don't use the a! prefix don't use keywords, so you shouldn't use the "condition", "valueIfTrue", and "valueIfFalse" keywords when using the if() function.

    A
    albertom856Author
    September 25, 2023

    Thank you, I will check the type of data

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