I am getting an extension error when I try and intersect some points and polygons.
Here is a photo of what I am trying to intersect:
Any help is appreciated.
I suspect that your input files are in two different coordinate systems. I don't think that intersect does a projection-on-the-fly prior to intersection. A visual inspection won't reveal this, ensure that they have the same coordinate system.
Actually, it is said there that your points and polygons don't intersect at all and thus you have "empty output".
You can check intersection visually by loading both layers - do you see any point inside polygons? Also check your intersection settings when running Intersect tool.