<PackageReference Include="Newtonsoft.Json" Version="8.0.1" />

UndefinedSchemaIdHandling

Specifies undefined schema Id handling options for the JsonSchemaGenerator.

JSON Schema validation has been moved to its own package. See http://www.newtonsoft.com/jsonschema for more details.
using System; namespace Newtonsoft.Json.Schema { [Obsolete("JSON Schema validation has been moved to its own package. See http://www.newtonsoft.com/jsonschema for more details.")] public enum UndefinedSchemaIdHandling { None, UseTypeName, UseAssemblyQualifiedName } }