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April 11, 2023
Question

Error Evaluating UI Expression

  • April 11, 2023
  • 2 replies
  • 1 view

I'm working on Appian Step-by-Step Exercise 9.

When following this step, "7. Go to the AX Vehicle record type, and next to the record type name, click View Record List. Click on a VIN to view the updated summary view interface."

When clicking on a VIN I am getting an error "Error Evaluating UI Expression Expression evaluation error [evaluation ID = RIBW5] at function a!contentLayout [line 76]: An array of components may only contain components. Received Text at index 1. (APNX-1-4198-000)".

I'm not quite sure how to move forward. 

    2 replies

    April 12, 2023

    Can you please share the code.

    From error it seems that you are directly using a text string in the list of components.

    Check the expression and see if there is any string at index 1 in the component list, you are trying to do something like below. Remove the text string and the error will go.

    {
    
    "text string",
    
    layout(),
    
    layout()
    
    }

    jayaprakashr0001
    Participating Frequently
    April 12, 2023

    Hi Straussa,

    In the components list you need to use only the layouts() instead you are using the textfield() for it. Try removing the text field it will work .

    If it's not helpful try sharing the code. So that will have a better understanding of your problem