Project Build Error

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 18, 2016 by lpcware
Content originally posted in LPCWare by sukrubahadir on Tue Mar 29 08:29:51 MST 2016
Hi forum,
I am using LPC 1769 board. And I have problem about building my project.
When I clear SystemCoreClockUpdate() function from the main, I build my project succesfully. But I can't build my project with SystemCoreClockUpdate() function. I think automatically generated makefile looks good but here is a problem and I can't find the problem. I post images to you. Thanks for your helps.

My error is 
undefined reference to `OscRateIn' clock_17xx_40xx.h/lpc_chip_175x_6x/incline 739C/C++ Problem