trouble uploading to board

hi i have an arduino nano which im having trouble uploading to. i keep getting the error

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

Did you notice that there is the ability to search the forum for any of the other 800,000 posts asking this same question?

What of the steps on the Troubleshooting page have you tried? With what results?

where is the trouble shooting page? The error that you saw also contained, I believe, a link to the local copy on your computer.

If you search you will find literally hundreds of threads on this.