The Project tool in ArcGIS Pro (2.4.0) is not accepting the NTv2 grid files for Geographic Transformation

[DavidLlewellyn]

Hi, We are attempting to transform our GDA94 datum data to GDA2020. We have downloaded the NTv2 grid files and stored them in the appropriate folders and renamed as per the ESRI technical blog - https://esriaustraliatechblog.wordpress.com/tag/gda2020/

However, the Project geoprocessing tool in Pro (2.4.0) is not accepting the NTv2 files, it is giving an 'ERROR 000365 invalid geographic transformation' message.

Has anyone else experience this, know of a solution?

Thanks

[DanPatterson_Retired]

David, this is one of the only recent threads that mentions NTv2

https://community.esri.com/message/845752-re-information-on-the-coordinate-systems-desktop-install?c... 

and there is some discussion on what is loaded for what version

[DavidLlewellyn · Accepted solution]

Thanks Dan and Hi again all,

Apparently the blog that I linked to is somewhat out of date. Downloading and installing the current 'ArcGIS Coordinate Systems Data' for ArcGIS Pro from MyESRI appears to resolve the issue.