System.Globalization.CultureInfo Exception thrown

[jashutosh]

Hi,
i am developing a client server app in c# using MsgPack.dll. and I'm getting this error in following code @ var serializer line.
Code:
System.IO.Stream buffer = new System.IO.MemoryStream();
// Creates serializer.
//ERROR LINE var serializer = SerializationContext.Default.GetSerializer();
// Pack obj to stream.
serializer.Pack(buffer, M);
buffer.Position = 0;

Error:
An unhandled exception of type 'System.Runtime.Serialization.SerializationException' occurred in MsgPack.dll

Additional information: Type 'System.Globalization.CultureInfo' does not have default (parameterless) public constructor.

STACK:
at MsgPack.Serialization.AbstractSerializers.SerializerBuilder3.GetDefaultConstructor(Type instanceType) at MsgPack.Serialization.AbstractSerializers.SerializerBuilder3.d__4a.MoveNext()
at System.Linq.Buffer1..ctor(IEnumerable1 source)
at System.Linq.Enumerable.ToArrayTSource
at MsgPack.Serialization.EmittingSerializers.ILEmittingSerializerBuilder2.EmitSequentialStatements(TContext context, Type contextType, IEnumerable1 statements)
at MsgPack.Serialization.AbstractSerializers.SerializerBuilder3.BuildObjectUnpackFrom(TContext context, IList1 entries)
at MsgPack.Serialization.AbstractSerializers.SerializerBuilder3.BuildObjectSerializer(TContext context) at MsgPack.Serialization.AbstractSerializers.SerializerBuilder3.BuildSerializer(TContext context)
at MsgPack.Serialization.AbstractSerializers.SerializerBuilder3.BuildSerializerInstance(SerializationContext context) at MsgPack.Serialization.AutoMessagePackSerializer1..ctor(SerializationContext context, ISerializerBuilder1 builder) at MsgPack.Serialization.MessagePackSerializer.CreateInternal[T](SerializationContext context) at MsgPack.Serialization.SerializationContext.GetSerializer[T](Object providerParameter) at MsgPack.Serialization.EmittingSerializers.Generated.System_Data_DataTableSerializer11..ctor(SerializationContext ) at lambda_method(Closure , SerializationContext ) at MsgPack.Serialization.EmittingSerializers.SerializerEmitter.CreateInstance[T](SerializationContext context) at MsgPack.Serialization.EmittingSerializers.ILEmittingSerializerBuilder2.<>c__DisplayClass5a.b__59(SerializationContext context)
at MsgPack.Serialization.AbstractSerializers.SerializerBuilder3.BuildSerializerInstance(SerializationContext context) at MsgPack.Serialization.AutoMessagePackSerializer1..ctor(SerializationContext context, ISerializerBuilder1 builder) at MsgPack.Serialization.MessagePackSerializer.CreateInternal[T](SerializationContext context) at MsgPack.Serialization.SerializationContext.GetSerializer[T](Object providerParameter) at MsgPack.Serialization.EmittingSerializers.Generated.message_SetDailyReportSerializer10..ctor(SerializationContext ) at lambda_method(Closure , SerializationContext ) at MsgPack.Serialization.EmittingSerializers.SerializerEmitter.CreateInstance[T](SerializationContext context) at MsgPack.Serialization.EmittingSerializers.ILEmittingSerializerBuilder2.<>c__DisplayClass5a.b__59(SerializationContext context)
at MsgPack.Serialization.AbstractSerializers.SerializerBuilder3.BuildSerializerInstance(SerializationContext context) at MsgPack.Serialization.AutoMessagePackSerializer1..ctor(SerializationContext context, ISerializerBuilder1 builder) at MsgPack.Serialization.MessagePackSerializer.CreateInternal[T](SerializationContext context) at MsgPack.Serialization.SerializationContext.GetSerializer[T](Object providerParameter) at MsgPack.Serialization.EmittingSerializers.Generated.messageSerializer0..ctor(SerializationContext ) at lambda_method(Closure , SerializationContext ) at MsgPack.Serialization.EmittingSerializers.SerializerEmitter.CreateInstance[T](SerializationContext context) at MsgPack.Serialization.EmittingSerializers.ILEmittingSerializerBuilder2.<>c__DisplayClass5a.b__59(SerializationContext context)
at MsgPack.Serialization.AbstractSerializers.SerializerBuilder3.BuildSerializerInstance(SerializationContext context) at MsgPack.Serialization.AutoMessagePackSerializer1..ctor(SerializationContext context, ISerializerBuilder`1 builder)
at MsgPack.Serialization.MessagePackSerializer.CreateInternalT
at MsgPack.Serialization.SerializationContext.GetSerializerT
at MsgPack.Serialization.SerializationContext.GetSerializerT
at SubscriberSimulator.Program.Main(String[] args) in [PATH]\client.cs:line 86
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()

any idea how to solve this? any help is appreciated. Lots of Thanks in advance.... :-). this shit cost me almost 20 Hrs. of coding...

[yfakariya]

Fast solution is implementing custom serializer and registering it.
Sample is here:

public class CultureInfoSerializer : MessagePackSerializer<CultureInfo>
{
    public CultureInfoSerializer ( SerializationContext ownerContext )
        : base( ownerContext ) { }

    protected internal override void PackToCore( Packer packer, CultureInfo objectTree )
    {
        packer.Pack( objectTree.Name );
    }

    protected internal override CultureInfo UnpackFromCore( Unpacker unpacker )
    {
        return CultureInfo.GetCultureInfo( unpacker.LastReadData.AsString() );
    }
}

Registration sample is:

var context = new SerializationContext();
context.Serializers.Register( new CultureInfoSerializer( context ) );

// You can serialize/deserialize CultureInfo with the context here.

I think CultureInfo is basic type, so I'll add builtin serializer for it in next release. Thanks!

[yfakariya]

This issue fixed in 0.6.2. Please check it.