https://devzone.nordicsemi.com/f/nordic-q-a/40870/keil5-can-not-compiler-nrfx-timer-driverHi there, I encounter a problem when making a simple project to toggle a led on nrf52840DK. I use nrfx to drive the hardware layer as follow An error generated when compile,as follow I have no idea to fix the problem.Really appreciate for youren-USTelligent Community 13Tue, 27 Nov 2018 10:18:52 GMThttps://devzone.nordicsemi.com/thread/159192?ContentTypeID=1Tue, 27 Nov 2018 10:18:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ee62e207-50fd-4356-9c50-58d6483f5de2Simon<p>Have you added the source (.c) files to your project. If using Keil, you simply add the files to the project folder in the Project window.</p> <p>Best regards</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/158938?ContentTypeID=1Mon, 26 Nov 2018 01:22:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b9169b0e-7b2c-4167-9b83-70defd2b5d22Allen0207<p>Particularly strange ! It compiles correctly.Maybe something goes wrong in my windows10.</p><div style="clear:both;"></div>