Can't open syscall/gpio.h

Can't open syscall/gpio.hhttps://devzone.nordicsemi.com/f/nordic-q-a/119955/can-t-open-syscall-gpio-hHi everyone, I am getting this build error while I am trying to call a function from gpio.h in my custom code Looking at my includes I see this This is a really old SDK version (2.1.0) because this sample software was created on this versionen-USTelligent Community 13Thu, 20 Mar 2025 13:24:20 GMTRE: Can't open syscall/gpio.hhttps://devzone.nordicsemi.com/thread/528230?ContentTypeID=1Thu, 20 Mar 2025 13:24:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:23728e17-690f-4f56-921a-e28c8d3e5ff6AHaug<p>Hi,</p> <p>I believe you're missing </p> <div><em>#include <zephyr/drivers/gpio.h> </em>in main.c or <em>CONFIG_GPIO=y </em>in your prj.conf</div> <div><span></span></div> <div><span>Kind regards,<br />Andreas</span></div><div style="clear:both;"></div>