netstandard2.1 enable $(LangVersion) $(BotSharpVersion) $(GeneratePackageOnBuild) ..\..\packages PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest PreserveNewest