Problem with compiling my avr program in CodeBlocks

[Eng.Fahd]

Hello all,

I started using CodeBlocks for programming AVR micorcontrollers, it looks a good IDE for AVR programming. But I have a small problem with it.
I wrote a simple code for testing, the code is:

#include <avr/io.h>

int main(void)
{
    DDRB=00000011;
    PORTB=00000001;
    while(1)
    {
   
    }

    return 0;
}

When I press build button, I get:

-------------- Build: Debug in test (compiler: GNU GCC Compiler for AVR)---------------

avr-gcc -mmcu=atmega8 -Wall -DF_CPU=8000000UL -g -I/usr/include -c fuse.c -o obj/Debug/fuse.o
avr-gcc -mmcu=atmega8 -Wall -DF_CPU=8000000UL -g -I/usr/include -c main.c -o obj/Debug/main.o
avr-g++ -L/usr/lib -o bin/Debug/test.elf obj/Debug/fuse.o obj/Debug/main.o  -mmcu=atmega8 -Wl,-Map=bin/Debug/test.map,--cref  
Output file is bin/Debug/test.elf with size 8,74 KB
Running target post-build steps
avr-objdump -h -S bin/Debug/test.elf > bin/Debug/test.lss
avr-objcopy -R .eeprom -R .fuse -R .lock -R .signature -O ihex bin/Debug/test.elf bin/Debug/test.hex
avr-objcopy --no-change-warnings -j .eeprom --change-section-lma .eeprom=0 -O ihex bin/Debug/test.elf bin/Debug/test.eep
avr-objcopy --no-change-warnings -j .lock --change-section-lma .lock=0 -O ihex bin/Debug/test.elf bin/Debug/test.lock
avr-objcopy --no-change-warnings -j .signature --change-section-lma .signature=0 -O ihex bin/Debug/test.elf bin/Debug/test.sig
avr-objcopy --no-change-warnings -j .fuse --change-section-lma .fuse=0 -O ihex bin/Debug/test.elf bin/Debug/test.fuse
srec_cat bin/Debug/test.fuse -Intel -crop 0x00 0x01 -offset  0x00 -O bin/Debug/test.lfs -Intel
srec_cat bin/Debug/test.fuse -Intel -crop 0x01 0x02 -offset -0x01 -O bin/Debug/test.hfs -Intel
Process terminated with status 0 (0 minute(s), 0 second(s))
0 error(s), 0 warning(s) (0 minute(s), 0 second(s))

I works fine, and there is no error and I get the hex file in the folder Debug.
But when I press run button, I get the following:

-------------- Run: Debug in test (compiler: GNU GCC Compiler for AVR)---------------

Checking for existence: /home/fahd/Desktop/mfiles/AVR/test/test/bin/Debug/test.elf
Executing: /home/fahd/Desktop/mfiles/AVR/test/test/bin/Debug/test.elf  (in /home/fahd/Desktop/mfiles/AVR/test/test/)
Process terminated with status 2 (0 minute(s), 0 second(s))

It should generate another folder named 'release' which contains the final output files like hex file, so somthing goes wrong.

Thanks in advance.

- - - Updated - - -

Now I found that I can get the release folder by selecting release form the menu (Build --> Select target --> Release), it worked.
But What is the real difference between Debug and Release. And the run option still not working, is run has no function with avr programming.