I get the following message when compiling my sketch: "avrdude: stk500_getsync():not i sync: resp = 0 x 30". Any ideas on what it means?
I get the following message
That's not the ONLY message you get.
There is a Help menu, with a Troubleshooting entry.
Complaining on the forum is waaaaay down on the list.
Try to check you select the correct board, and u are using "avrisp mkII" if nothing help try to re download the software 