hello .....i'm using window 7 ,64 bit as operating system. i have installed avr studio4.14. but the thing is the compiler cannot compile the program......i just like to know what exact the matter is

? plzz help it's too urgent..
well ....i have attached the program .it's a line follwing one ....in case there is any mistake in program itself then kindly help me to rectify....
thank u....