https://devzone.nordicsemi.com/f/nordic-q-a/6177/building-esb-example-in-nrf51822-sdk-w-gccWhen running the makefiles found in the esb/gcc_rx and esb/gcc_tx folders I get the following errors: base:gcc_tx jnoble$ make mkdir _build &quot;/Users/jnoble/hardware/nrf51822/gcc-arm-none-eabi-4_8-2014q2/bin/arm-none-eabi-gcc&quot; -mcpu=cortex-m0 -mthumben-USTelligent Community 13Mon, 23 Mar 2015 06:15:41 GMThttps://devzone.nordicsemi.com/thread/21639?ContentTypeID=1Mon, 23 Mar 2015 06:15:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:826b3163-89b9-434b-99fa-f5d91669fc8ajoshuajnoble<p>Question is updated, thanks!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/21638?ContentTypeID=1Mon, 23 Mar 2015 06:02:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0c066a86-ccab-422f-b7ad-271200c56ed3Krzysztof Chruscinski<p>What version of SDK was that? Is it an unmodified example, directly from SDK? What is the environment (win,linux,mac)?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/21637?ContentTypeID=1Mon, 23 Mar 2015 00:18:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6fd4fdfb-8025-466e-bcda-34de4efb65b6joshuajnoble<p>This was fixed by moving system_nrf51.c to the source folder and then compiling. Not sure how to alter the necessary paths to have the makefile correctly find this file but the fix seemed to work.</p><div style="clear:both;"></div>