zonal statistic error 999999

I am trying to run the Zonal Statistics as Table tool on my data in order to sum the number of cells of a certain type of landcover in each county. For example, I want it to sum how many Deciduous forest, Pasture/Hay land and etc.. there are in each county individually.

I have tried two different ways: 1. By using the Extract by Attributes tool on the raster to extract each individual type of cell (so, one raster is created for deciduous forest cells and one raster for paster/hay and etc...), then running the zonal statistic on each of those one at a time (not sure if this is necessary or not). 2. By just running the Zonal statistics as Table tool on the full raster. 

I have tried EVERYTHING (saving it in a personal geodatabase, saving it in a file, getting rid of spaces in file names, making sure zone feature name is less than 17 characters etc...) and I still keep getting either "ERROR 999999" or there is no error at all under messages or even an indication that it has stopped, instead the red X circle just appears next to

it with no message. I attached a screenshot of what that second occurrence looks like. 

Does anyone have any idea what I might be able to do to make this tool work? And do I need to be performing the "Extract by Attributes" tool or should the Zonal Statistics tool be able to sum up each type of cell (e.i. deciduous forest, developed land etc..) individually in each county? 

Answer:

there appear to have spaces in the file names and (Tiger....)

what is the field with the period in it? it suggests a join on the table (not good)

input value raster (no file extension... what is it? not an esri grid for sure 

Z folder... is that a network drive? a remapped drive? not a usb or some other non-local drive

Did you try a small sample of the data (split some pieces out to rule out memory issues)

Converting a polygon to a raster is going to show this behaviour if you zoom in close enough, and as Xander points out, you can gain control over the cell size of the conversion by doing the conversion prior to performing any further analysis.  Processing Environments should always be considered and set before doing any sort of analysis.  Unfortunately the 'Environments' button is way at the bottom right of all the tools in Arctoolbox in the region 'obscurata'... at least in ArcGIS Pro.. Environments is placed on an equal footing on the top of all tool dialog.  Never assume... especially when working with rasters... by default the cell size is 1/250th the largest of the extent (width or height)... but what if you want a cell size of 10 m?  isn't going to happen unless you set it before doing your work.

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