Mike,
As your post is a couple years old, I am sure you figured out what you needed. And while I don't have a direct answer, I will offer that when I receive the error you specified, I have found the solution to be a manual adjustment of the classification. For instance, when reclassifying based on Jenks optimization, my largest real number value was often out of range. So after selecting Jenks classes, I would manually correct the largest value that was identified, because it was identified incorrectly. After manually correcting it with the maximum precision of that particular value in the layer to be reclassified, I no longer received the errors. Hope this helps someone.