990 B
FIX4 - .NET Framework 4.8 build isolated
The Visual Studio errors reported against ...DUAL_NET48_FIX2\... show that the old FIX2 tree was still being built.
FIX3 already contains the explicit System.Net.Http package reference for the netstandard2.0 target.
FIX4 additionally provides a completely isolated native .NET Framework 4.8 build so the optional netstandard target can no longer block creation of the .NET 4.8 DLL.
Recommended for .NET Framework 4.8
Open:
IMSApiDotNet_NET48_ONLY.sln
Then select Release / Any CPU and build the solution.
Expected output:
src\IMSApiDotNet\bin\Release\net48\IMSApiDotNet.dll
The project IMSApiDotNet.Net48.csproj explicitly references System.Net.Http and the .NET Framework 4.8 reference assemblies.
Dual target remains available
The original solution is still included:
IMSApiDotNet_10.0.0-59_HttpClient.sln
It builds netstandard2.0;net48. The netstandard target needs NuGet restore for System.Net.Http 4.3.4.