OK, thanks. I have a somewhat related issue with a KSDK 1.3 project. If I build a sample project, it works perfectly, but when I include a UART driver and try to init and send a sample string, I get “undefined reference to ‘UART_DRV_Init'” for each function. I know it can find the code because I can hover over the functions and see the documentation. Do I need to add each driver source file and all of its dependencies to the solution manually?