Pasting a feature class from a geodatabase into a feature dataset returns the following message:
"Failed to paste <feature class> The spatial references do not match"
This issue occurs when different extents, resolutions, and tolerance values exist between the origin and destination feature classes.
The latter portion of the error message, "spatial references do not match", applies to X and Y coordinates, the XY Tolerance, the XY Resolution, as well as Z or M resolutions. To ensure the data has the same properties in all these areas, use the following procedure: