While I was having problems as noted in #1463, I was also getting a avrdude timeout:
avrdude.exe: stk500_recv(): programmer is not responding avrdude.exe: stk500_getsync() attempt 1 of 10: not in sync: resp=0x2d
Since I could upload from the tutorial, I wondered if it could be something in the cached project. Unfortunately, I did a
rm -rf /tmp/xod_temp_sketchbook*, which worked, but now I can’t give you those files to figure out what went wrong.
I had been developing a library, with custom-types (soon…), and had numerous bugs (compilation errors, XOD refusing to read ALL libraries, bad custom-types, etc.). And, of course, I was using “reload” a lot, and had the forum #1463 problem. So, somewhere in there, the cache captured something evil that totally broke uploading.