<PackageReference Include="System.ServiceModel.Primitives" Version="6.1.0" />

System.ServiceModel.MessageHeaderException

namespace System.ServiceModel { public class MessageHeaderException : ProtocolException { public string HeaderName { get; } public string HeaderNamespace { get; } public bool IsDuplicate { get; } public MessageHeaderException(string message); public MessageHeaderException(string message, bool isDuplicate); public MessageHeaderException(string message, Exception innerException); public MessageHeaderException(string message, string headerName, string ns); public MessageHeaderException(string message, string headerName, string ns, bool isDuplicate); public MessageHeaderException(string message, string headerName, string ns, Exception innerException); public MessageHeaderException(string message, string headerName, string ns, bool isDuplicate, Exception innerException); public MessageHeaderException(); protected MessageHeaderException(SerializationInfo info, StreamingContext context); } }