Compatibility with .NET Core, .NET 5 and newer assemblies

[twijg-ben]

If an assembly with preprocessed templates and helper methods has been built in .NET Core, .NET 5 or newer, then the Text Templating Engine is having trouble running templates that include these assemblies.

For instance,

<#@ assembly name="[netcoreassemblyname]" #>

The error messages in the build log are as follows:

It appears the .NET Framework 4.7.2 implementation doesn't support the latest System.Runtime that .NET Core and newer use.
Perhaps it would be possible that the T4 engine is built in .NET Core and .NET 5 as well, and .NET 6 whenever it becomes available?