Guidance is to replace generated WCF code with new tool to make code that's compatible with .NET Standard
https://docs.microsoft.com/en-us/dotnet/core/additional-tools/dotnet-svcutil-guide?tabs=dotnetsvcutil2x

We should either help the user run this tool or give them information that guides them to running the tool as a follow up step