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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