ASP.NET Core 2.0 Could not load file or assembly System.ServiceModel

Question

I am working on porting an \"ASP.NET Core Web Application\" that was compiling under the .NET Framework 4.6.1 (i.e. full framework) over to compiling against .NET Core 2.0.

Answer 1

I solved this problem installing the Nuget package:

Install-Package Microsoft.Windows.Compatibility

I was using ASP.net Core 2.2 but maybe works for 2.0v too

Answer 2

In Asp.Net Core, when the Microsoft WCF Web Service Reference Provider is used under the connected services, code generator automatically includes System.ServiceModel.Duplex, System.ServiceModel.Http, System.ServiceModel.NetTcp, System.ServiceModel.Security'assemblies.

<PackageReference Include="System.ServiceModel.Duplex" Version="4.4.*" />
<PackageReference Include="System.ServiceModel.Http" Version="4.4.*" />
<PackageReference Include="System.ServiceModel.NetTcp" Version="4.4.*" />
<PackageReference Include="System.ServiceModel.Security" Version="4.4.*" /> 

In your occasion, System.ServiceModel.Primitives is needed to be added aswell. System.ServiceModel.Primitives assembly includes System.ServiceModel.dll

System.ServiceModel, Version=4.0.0.0 is not used anymore.

please also see: https://github.com/dotnet/standard/issues/575#issuecomment-380479584