No marshaller available for xxx

[Roy-se7en]

/// <summary>
/// 订单服务
/// </summary>
[ServiceContract(ConfigurationName = MicroServiceNames.ServOrders)]
public interface IOrderService
{
    /// <summary>
    /// 获取订单信息
    /// </summary>
    /// <param name="request"></param>
    /// <param name="context"></param>
    /// <returns></returns>
    [NonAction]
    Task<OrderDto> GetOrderByIdAsync(ProtoLong request, CallContext context = default);
}

(1).if only it as client , it work well.

    context.services.AddCodeFirstGrpcClient<T>(o =>
        {})

    .......

(2).now, it as client and server, and add grpc reflection

    context.Services.AddCodeFirstGrpc(options =>
    {
        options.EnableDetailedErrors = true;
    });
    context.Services.AddCodeFirstGrpcReflection();
    context.services.AddCodeFirstGrpcClient<T>(o =>
        {})

....

    app.UseMyGrpcServices();
    app.MapCodeFirstGrpcReflectionService();

now .i ocur the error :
---> System.TypeInitializationException: The type initializer for 'DefaultProxyCache`1' threw an exception.
---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
---> System.InvalidOperationException: No marshaller available for Xchain.Share.Serv.Orders.Orders.OrderDto
at ProtoBuf.Grpc.Internal.MarshallerCache.g__Throw|5_0T in /_/src/protobuf-net.Grpc/Internal/MarshallerCache.cs:line 39

[mgravell]

1. which method is it that is throwing?
2. can we see an approximation of OrderDto? (so I can assess what I would expect it to do)

[Roy-se7en]

if I don't use below code, it work well

context.Services.AddCodeFirstGrpcReflection();
...
app.MapCodeFirstGrpcReflectionService();

[Roy-se7en]

/// <summary>
/// 列表项
/// </summary>
[ProtoContract]
public class OrderDto : OrderOutData
{
    /// <summary>
    /// 交期
    /// </summary>
    [ProtoMember(1)]
    public decimal? ProduceCycle { get; set; }

    /// <summary>
    /// 交易货币
    /// </summary>
    [ProtoMember(2)]
    public string Currency { get; set; }

    /// <summary>
    /// 交易货币汇率
    /// </summary>
    [ProtoMember(3)]
    public decimal ExchangeRate { get; set; }
    
    ...
}

 /// <summary>
/// 基础信息
/// </summary>
[ProtoContract]
[ProtoInclude(200, typeof(OrderDto))]
public class OrderOutData
{
    /// <summary>
    /// 询盘/订单Id
    /// </summary>
    [ProtoMember(1)]
    public long Id { get; set; }

    /// <summary>
    /// 客户id
    /// </summary>
    [ProtoMember(2)]
    public long MemberId { get; set; }

    /// <summary>
    /// 合伙人组织Id
    /// </summary>
    [ProtoMember(3)]
    public long CopartnerOrgId { get; set; }

    ...
}

[markushaslinger]

I ran into the same (or a similar) issue literally 20 minutes ago.

This fails:

[ServiceContract]
public interface IFooService
{
    [OperationContract]
    public ValueTask<FooResponse> Foo(FooRequest req);

    // other methods
}

[ProtoContract]
public sealed class FooResponse
{
    [ProtoMember(1)]
    public bool Exists { get; set; }

    [ProtoMember(2)]
    public LocalDate? PlanningStart { get; set; }

    [ProtoMember(3)]
    public LocalDate? PlanningEnd { get; set; }
}

with the following error:

System.InvalidOperationException: No marshaller available for Initech.Shared.Contract.Endpoints.FooResponse
   at ProtoBuf.Grpc.Internal.MarshallerCache.<GetMarshaller>g__Throw|5_0[T]() in /_/src/protobuf-net.Grpc/Internal/MarshallerCache.cs:line 39
   at ProtoBuf.Grpc.Internal.MarshallerCache.GetMarshaller[T]() in /_/src/protobuf-net.Grpc/Internal/MarshallerCache.cs:line 36
   at ProtoBuf.Grpc.Configuration.ServerBinder.AddMethod[TService,TRequest,TResponse](String serviceName, String operationName, MethodInfo method, MethodType methodType, ServiceBindContext bindContext, Func`3 invoker, MarshallerCache marshallerCache, ConstantExpression service, Boolean simplfiedExceptionHandling) in /_/src/protobuf-net.Grpc/Configuration/ServerBinder.cs:line 251
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
   at System.Reflection.MethodBaseInvoker.InvokeWithManyArgs(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)

Yet this works:

[ServiceContract]
public interface IFooService
{
    [OperationContract]
    public ValueTask<Bar> Foo(FooRequest req);

    // other methods
}

[ProtoContract]
public sealed class Bar
{
    [ProtoMember(1)]
    public required FooResponse Baz {get; set;}
}

[ProtoContract]
public sealed class FooResponse
{
    [ProtoMember(1)]
    public bool Exists { get; set; }

    [ProtoMember(2)]
    public LocalDate? PlanningStart { get; set; }

    [ProtoMember(3)]
    public LocalDate? PlanningEnd { get; set; }
}

I had another issue yesterday where simply wrapping an object made an issue go away, which I can't explain.

[mgravell]

OK, that's weird; I'll investigate

[markushaslinger]

OK, that's weird; I'll investigate

Thanks a lot!
If it helps I could probably send you the contract DLL and the server setup code, but I can't post it somewere public so I'd need some e-mail or other way to send it.

[mgravell]

I'm available at marc.gravell at gmail.com, or another way that often works is inviting @mgravell to a private github repo

[Roy-se7en]

<PackageReference Include="Google.Protobuf" Version="3.22.0" />
<PackageReference Include="Grpc.Net.ClientFactory" Version="2.54.0" />
<PackageReference Include="Grpc.Tools" Version="2.54.0">
    <PrivateAssets>all</PrivateAssets>
    <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="protobuf-net.Grpc" Version="1.1.1" />

if i add the package as below,it occur the error that i given

<PackageReference Include="protobuf-net.Grpc.AspNetCore.Reflection" Version="1.1.1" />
<PackageReference Include="System.ServiceModel.Primitives" Version="6.0.0" /> 

Is there any conflict ?

[markushaslinger]

I'm available at marc.gravell at gmail.com, or another way that often works is inviting @mgravell to a private github repo

You got mail. And because I forgot to mention it in the mail:

• The object from the SO issue was MonthDto (now wrapped in UpdateMonthPlanRequest)
• The object which leads to the marshaller error is MonthPlanExistsResponse

if i add the package as below,it occur the error that i given

I have the System.ServiceModel.Primitives because it is required for OperationContract, but I do not use protobuf-net.Grpc.AspNetCore.Reflection.

[Roy-se7en]

I'm available at marc.gravell at gmail.com, or another way that often works is inviting @mgravell to a private github repo

You got mail. And because I forgot to mention it in the mail:

• The object from the SO issue was MonthDto (now wrapped in UpdateMonthPlanRequest)
• The object which leads to the marshaller error is MonthPlanExistsResponse

if i add the package as below,it occur the error that i given

I have the System.ServiceModel.Primitives because it is required for OperationContract, but I do not use protobuf-net.Grpc.AspNetCore.Reflection.

hello, have you find the problem?

[mgravell]

If I had an update for you: I would have replied already. I haven't even had chance to look yet. Please be realistic about your expectations and demands here - this isn't paid commercial support; this is somebody giving up their free time to try to help strangers. I spent my weekend with my family. This is not my paid day job, and you're not a paying customer. Please don't pester people who are helping you on those terms! I'll look as soon as I can, but: don't nag - that just sucks the life and joy out of OSS.

[Roy-se7en]

If I had an update for you: I would have replied already. I haven't even had chance to look yet. Please be realistic about your expectations and demands here - this isn't paid commercial support; this is somebody giving up their free time to try to help strangers. I spent my weekend with my family. This is not my paid day job, and you're not a paying customer. Please don't pester people who are helping you on those terms! I'll look as soon as I can, but: don't nag - that just sucks the life and joy out of OSS.

i'm sorry to disturb you, i neglect the time zone (it is workday in my zone).

[bizzare-bread]

I had the issue like this once. For me the reason was in my grpc model. I had a property which is an enum that was inside the library (nuget), and the library was not directly (implicitly) added as a dependency to the assembly where I had my grpc model. Hope this can help someone.

[DxsSucuk]

Is there any further Investigation?