This worked for me, but just "1.6.20" version, when I try .21 or .22 version it crash.
pert:
Hi Bruno. Welcome!Try doing this:
- Tools > Board > Boards Manager
- Wait for downloads to finish
- Click on "Arduino AVR Boards"
- From the dropdown menu select "1.6.20"
- Click "Install"
- Wait for installation to finish
- Click "Close"
- Try compiling again