facing problem in building the source code in mplab

i facing problem in building the source code in mplab. why with same source code, but different laptop, my friend build it successfully but then in my laptop, it shown:

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Debug build of project `C:\Users\ding\Desktop\sem 6\KNL 3333 Data\Wind Monitoring System Complete\Wind Monitoring Firmware\Wind Monitoring System.mcp' started.
Preprocessor symbol `__DEBUG' is defined.
Tue Apr 24 18:07:32 2012
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Clean: Deleting intermediary and output files.
Clean: Done.
Couldn't locate build tool. Check tool locations.
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Debug build of project `C:\Users\ding\Desktop\sem 6\KNL 3333 Data\Wind Monitoring System Complete\Wind Monitoring Firmware\Wind Monitoring System.mcp' failed.
Preprocessor symbol `__DEBUG' is defined.
Tue Apr 24 18:07:32 2012
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BUILD FAILED


this is my source code:



#ifndef HARDWARE_SETUP_H
#define HARDWARE_SETUP_H

#define self_power 0
#define USB_BUS_SENSE 1

#define CLOCK_FREQ 20000000

/** Initialize Input/Output Ports **********************************/
#define InitPorts() TRISA = 0xFF; TRISB = 0xC0; TRISC = 0x00; TRISD = 0x00; TRISE = 0x00;
#define Sensor1 PORTBbits.RB6
#define Sensor2 PORTBbits.RB7

/** ADC ************************************************************/
#define InitTemperature() {TRISAbits.TRISA0=1;ADCON0=0x01;ADCON2=0x3C;ADCON2bits.ADFM = 1;}
#define InitSpeed() {TRISAbits.TRISA1=1;ADCON0=0x05;ADCON2=0x3C;ADCON2bits.ADFM = 1;}

#endif


thanks for help me answering.

Couldn't locate build tool. Check tool locations.

Click to expand...

Have you installed them?? not all installations on MPLAB have the compilers installed

i install from internet, mean that i need to install again, i try install again.thanks.

i install from other sources, but still cant work. may i have any link so that i can install a full version?

You need to download and install C18 (I take it you are using a pic18) There is a student / lite version you can download here **broken link removed**

You will need to login... (its free)

thanks....