https://devzone.nordicsemi.com/f/nordic-q-a/59883/how-to-import-create-custom-libraries-in-sesI&#39;ve been programming in SES for several months now, and I need to put the code into libraries to keep an overview of my project. I&#39;ve been able to include SDK libraries by following the tutorials and the help of this forum. But I haven&#39;t figureden-USTelligent Community 13Tue, 07 Apr 2020 08:30:36 GMThttps://devzone.nordicsemi.com/thread/243819?ContentTypeID=1Tue, 07 Apr 2020 08:30:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:df5bad61-e627-4446-a7c9-f325100e5d20Amanda Hsieh<p>Hi,&nbsp;</p> [quote user=""]The error message I get is: undefined reference to function1[/quote] <p>&nbsp;The function name used in the main.c is different from the one <strong>myfunction1</strong> defined in <span>mylib.c</span> and .h.&nbsp;</p> <p>-Amanda H.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/243816?ContentTypeID=1Tue, 07 Apr 2020 08:10:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:82fb6802-52a9-4b64-8fd7-8cf2f934fc0cephimee<p>Yes I tried, still same issue.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/243800?ContentTypeID=1Tue, 07 Apr 2020 07:11:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f1f264e3-bf91-4517-ac9f-e4190bfad1e0Amanda Hsieh<p>Hi,&nbsp;</p> <p>Did you clean and rebuild the project?</p> <p>-Amanda H.</p><div style="clear:both;"></div>