arm.axf: Error: L6236E: No section matches selector - no section to be FIRST/LAST.

hello.I am writing a code.But I couldnt successful.It give error that is:
arm.axf: Error: L6236E: No section matches selector - no section to be FIRST/LAST.

how can I edit it?

My code is:

/* Include header file depending upon device been used */
#include <LPC213X.H>

void Initialize(void);
/* Macro Definitions */
#define TEMT (1<<6)
#define LINE_FEED 0xA
#define CARRIAGE_RET 0xD
/************************* MAIN *************************/
int main()
{ int i;
char c[]="Philips LPC";
Initialize();
/* Print forever */
while(1)
{ i=0;
/* Keep Transmitting until Null character('\0') is reached */
while(c[i])
{ U0THR=c[i];
i++;
} U0THR=LINE_FEED;
U0THR=CARRIAGE_RET;
/* Wait till U0THR and U0TSR are both empty */
while(!(U0LSR & TEMT)){}
} }
/*************** System Initialization ***************/
void Initialize()
{ /* Initialize Pin Select Block for Tx and Rx */ PINSEL0=0x5; /* Enable FIFO's and reset them */ U0FCR=0x7; /* Set DLAB and word length set to 8bits */ U0LCR=0x83; /* Baud rate set to 9600 */ U0DLL=0x10; U0DLM=0x0; /* Clear DLAB */ U0LCR=0x03;
}