arduino uno R3 compilation error

hi, i face error in arduino sketch uploading, my arduino code properly compiled & uploaded, but on serial port i get different result & also i got these error

Binary sketch size: 3340 bytes (of a 32256 byte maximum) avrdude: stk500_getsync(): not in sync: resp=0x00

how can i solve this error, please help me

Well, there are a lot of possible causes and a lot of people asked the same here, you have to search and try some solutions until you get a especific issue.

Option 2: Test this version http://arduino.cc/forum/index.php/topic,118440.0.html install your arduino drivers when setup ask, press "Fix" when uploading, it will try to re-enable the arduino.