Launching ArcGIS Pro 3.0.3 and subsequent 3.0.x patch versions returns the following error:
“To run this application, you must install missing frameworks for .NET. Would you like to download it now?”
ArcGIS Pro 3.0.3 and subsequent 3.0.x patch versions require a minimum of Microsoft .NET Desktop Runtime 6.0.5 – Windows x64, as indicated in the System Requirements. If the machine has .NET 7.x.x installed without the minimum required version from the .NET 6 family installed, this error is received.
Note: At ArcGIS Pro 3.0.x this error may be presented after installation. However at ArcGIS Pro 3.1 and later, this error may be returned during install as it is a pre-installation requirement in those later versions.
Download and install the latest available version of Microsoft .NET 6.x.x Desktop Runtime – Windows x64 from Microsoft: Download .NET 6.0, as shown in the image below.