I have a workbench that has a ESRI Reprojector that reprojects from HARN to Web Mercator before publishing to out to a service in ArcGIS Online.Each time get the error:
Reprojector: Invalid reprojection parameters
%0 Writer: Failed to reproject feature with coordinate system '%1' to '%2'. Verify that the coordinates and coordinate systems are valid, and try again
ARCGISONLINEFEATURES writer: A fatal error has occurred. Check the logfile above for details
A fatal error has occurred. Check the logfile above for details
CnxParcel_Overlay (SpatialRelationshipFactory): A fatal error has occurred. Check the logfile above for details
Scott