Uno board did work, then doesn't work.

[Don Hoffmann]

Anyone know why an Uno R3 board would stop working with Ardublock? It still works with the arduino sketches typed out in C++, but when I upload it from Ardublock I get a bunch of Java errors. Weird thing is that it did work new out of the packaging. I had this happen to 4 boards all with different number chips in them.

[Andrew Williams]

Ardublock stopped working with new versions of the Arduino IDE. That could be the problem you are seeing. I forget the exact version, 1.6.12 or somewhere around there. Try an older version of the Arduino IDE (can get them from the Arduino website). 

I think modified Ardublock is available on GitHub. At least the changes that need to be made to fix Ardublock for new IDE are detailed in the comments there on GitHub.

[Don Hoffmann]

It took awhile to download various Arduino IDEs, but 1.6.12 didn't work. The one I got to work is 1.6.8. It works with both the original ardublock and the sparkfun ardublock that has a lot more libraries on it. I still do not know why uploading it worked first and stop working later. I also had success with certain chips and not with others. Very strange.