ERRO IN SERIAL bluettoth program

i have G Board with xpro and i wont to configure my btbee and try to load this code..

#include <NewSoftSerial.h> //Software Serial Port
#define RxD 2
#define TxD 3

NewSoftSerial blueToothSerial(RxD,TxD);

void setup()
{
Serial.begin(9600); //Serial port for debugging, Comment this line if not required
pinMode(RxD, INPUT);
pinMode(TxD, OUTPUT);
setupBlueToothConnection();

}

void loop()
{

if(blueToothSerial.read() == 'a')
{
blueToothSerial.println("You are connected to Bluetooth Bee");
//You can write you BT communication logic here
}
}

void setupBlueToothConnection()
{
Serial.print("Setting up Bluetooth link"); //For debugging, Comment this line if not required
blueToothSerial.begin(38400); //Set BluetoothBee BaudRate to default baud rate 38400
delay(1000);
sendBlueToothCommand("\r\n+STWMOD=0\r\n");
sendBlueToothCommand("\r\n+STNA=modem\r\n");
sendBlueToothCommand("\r\n+STAUTO=0\r\n");
sendBlueToothCommand("\r\n+STOAUT=1\r\n");
sendBlueToothCommand("\r\n+STPIN=0000\r\n");
delay(2000); // This delay is required.
blueToothSerial.print("\r\n+INQ=1\r\n");
delay(2000); // This delay is required.
Serial.print("Setup complete");

}

void sendBlueToothCommand(char command[])
{
char a;
blueToothSerial.print(command);
Serial.print(command); //For debugging, Comment this line if not required
delay(3000);

while(blueToothSerial.available()) //For debugging, Comment this line if not required
{ //For debugging, Comment this line if not required
Serial.print(char(blueToothSerial.read())); //For debugging, Comment this line if not required
} //For debugging, Comment this line if not required
}

but this provide some error

In file included from Bluettoth.ino:2:
C:\Documents and Settings\suresh\My Documents\Arduino\libraries\GSM_Shield/NewSoftSerial.h:71: error: conflicting return type specified for 'virtual void NewSoftSerial::write(uint8_t)'
I:\arduino-1.5.2-windows\arduino-1.5.2\hardware\arduino\avr\cores\arduino/Print.h:48: error: overriding 'virtual size_t Print::write(uint8_t)'

Bluettoth.ino (1.78 KB)

#include <NewSoftSerial.h>   //Software Serial Port

is incompatible with

I:\arduino-1.5.2-windows\arduino-1.5.2

You should be using SoftwareSerial, instead.