avrdude: butterfly_recv(): programmer is not responding

I’m busy all week programming, and up to today that was a real pleasure. Using a leonardo board, win 7, latest IDE (1.6.12).
This morning I’ve been cursing around for some time, since the board will not accept uploading my sketch anymore.

The serial Monitor works, so the program on the board must be something doing! Searching the web I followed other threads, especially on changing baud-rates etc, pushing the reset-button etc… but really nothing works.

So: I’ve tried another leonardo… Guess what: the program is exepted right-away… and then the same thing happened… I’m not able to upload a new version of the sketch, or any other sketch and the same messages appear.

The upload was done with the verbose option ogf course, see attachment for the result.

Problem uploading.txt (3.3 KB)

Did you try the double press of the reset button ?