Selector Error : Could Not Find the UI Element Corresponding to the selector


I am Trying to Solve the Performer part of the Assignment 3 - Generate Yearly Report Vendor.
while Creating yearly Report , i am Getting Error in using

( “” )

selector in ACME System 1 Download Report page. i already created In_Year Argument at the start. can any one help ? sharing Screen Shots of the Error .

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I need Help on using the Selector ?

Also sharing you the pdf screenshot.

Somewhere in your code, In_Year isn’t being set.