“JSSC has been released wih 1.5.6, this problem should be fixed now.”
I am new to this forum. I have the same problems once in a while when uploading a sketch from my iMac (Mid 2010) to an (official) Arduino UNO (Rev 3) board. What do I have to do? Do I need to switch from version 1.0.1 of the IDE to version 1.5.6? As I already installed this a couple of months ago - do I have to re-install it? Any suggestions are highly appreciated.