Error: avrdude: stk500_getsync() -Need Help

Heyya everyone,

I have been playing with my arduino, trying to get a project done for tomorrow, everything was working fine. I have uploaded to the arduino at least 10 times tonight without an issue, but out of nowhere when i try to upload a sketch i get the following error:

avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51

Model: Arduino Uno
I have noticed that when i try and upload i see the rx light flash, but no tx.

I have checked other forum posts and troublshooting and have tried, reseting com port, reinstalling usb drivers, and lastly reseting the arduino and trying to upload again. Still no success.

Interestingly i noticed that when i try to reset the arduino, touching the reset button causes the D13 led (built in) to shine brightly. It seems to fluctuate in brightness.

Any ideas? I desperately need this going for tomorrow.

=(

EDIT:

Arduino still registers in windows as being plugged in and unplugged. It appears in device manager as installed.

Hello,

Read this :

Hoping it will help.

too many http's at the start ofyour link Jean-Marie.

Thank you CrossRoads.

It is corrected