I've heard others recommend downloading the latest firmware so I suppose that's a good place to start. If you are still seeing the problem, then I would isolate the problem block by removing sections of the program until you get the download to work. ( don't save the file). Once the block is isolated then replace it with a new one.
That seems to work for my team although if there is a better solution, I'd sure like to hear it.
On Nov 2, 2008, at 6:03 PM, Karen McSweeney Contreras wrote:
We are suddenly having trouble with our robot accepting downloads from our laptop computer. We get an error message on the laptop computer that says “There is a data wire that does not have a data source. Error # 5021.” But there do not appear to be any wires that are not connected!! We tried connecting a different NXT robot to the laptop and we get the same problem; so we know it is the program, not the robot. We deleted the program and reloaded it. Nothing has helped. Any thoughts on a solution or where I can find a solution?
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