Error Evaluating UI Expression

Question

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.

Sanchit Gupta (Xebia) · Answer

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()

}