Power pin from Step-down to Arduino

Schematic
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Hi all, I get the error:

Input Power pin not driven by any Output Power pins

on Arduino Vin pin (lower right in the snapshot below) but I don’t know how to set this pin. The Vin pin should take power from the Step-down’s OUT pin (9V, upper left in snapshot).
Please, can someone help me? Thanks

image
image2576×696 60.1 KB

[UPDATE]
Edited the Step-down symbol (LM2596S-5) to change the OUT pin from type Output to Power output.
Error gone …

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