Description
The spatial reference of the Input Space Time Cube parameter value is incompatible with the spatial reference of the output coordinate system and cannot be reprojected. To complete the analysis, the calculations were completed in the WGS_1981_Web_Mercator_Auxiliary_Sphere coordinate system.
Solution
To use a coordinate system other than WGS_1984_Web_Mercator_Auxiliary_Sphere, consider reprojecting both datasets into an alternative coordinate system that both inputs can successfully reproject.