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CC2650STK with UART

I'm using sensor tag 2 and trying init UART...

I follow to step by http://processors.wiki.ti.com/index.php/CC2640_NPI_UART_ECHO_EXAMPLE

In preprocessor added NPI_USE_UART and included $PROJ_DIR$/../../../../../../../Components/npi 

In project added  npi_rxbuf.c npi_tl.c npi_tl_uart.c  npi_task.c and npi_task.h files

In main.c added 

#include "npi_task.h" 
...
    /* NPI UART Example Task - Priority 2 */
    NPITask_createTask(2);    
    appSem = Semaphore_create(0, NULL, NULL);

When I make project, I get errors  no definition for : "UART_write", "UART_read", "UART_Params_init", "UART_open", "UART_control"

What's wrong?