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Modelbuilder Erorring out because of Population Field parameter in KDE

Question asked by zle83 on Apr 16, 2010
I am trying to get a basic tool/model to work and there is one hangup. The Population field in the kernel density tool is required and therefor has to be incorporated. I do not have a field to select so I want the default value of "NONE" It works fine using the kernel density tool alone but not my model. I have attached the error and model. I have created t his so that my KDE is more efficient. This way I don't have to enter an extent polygon, cell size, etc. every time for the same area. Any help would be much appreciated!

Oh yea, I have tried assigning it the NONE value, using it as a parameter and not, and trying preconditions and no luck.