Can not convert to System.Guid

Question

Trying to set up RavenDb 3.5 and NServiceBus 6. After I senter the saga that I have set up in my NServiceBus endpoint, I enter a handler. Once this handler is finished, I get this error msg.

System.ArgumentException: Could not convert identity to type System.Guid because there is not matching type converter registered in the conventions' IdentityTypeConvertors

My code:

public static class AutoFacConfig
{
    public static IContainer ConfigureAutofac()
    {
        var builder = new ContainerBuilder();

        var resourceManagerId = new Guid("6c9abcbb-c7ca-4a67-a149-5142f633f535");

        var dtcRecoveryBasePath = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);
        var recoveryPath = Path.Combine(dtcRecoveryBasePath, "NServiceBus.RavenDB", resourceManagerId.ToString());

        builder.Register(x =>
        {
            var store = new DocumentStore
            {
                ConnectionStringName = "RavenDB",
                ResourceManagerId = resourceManagerId,
                TransactionRecoveryStorage = new LocalDirectoryTransactionRecoveryStorage(recoveryPath)
            };
            store.DefaultDatabase = "MyDB";
            store.Initialize();
            store.Conventions.IdentityPartsSeparator = "-";
            var _guidTypeConvertor = store.Conventions
                .IdentityTypeConvertors
                .FirstOrDefault(id => id.CanConvertFrom(typeof(Guid)));
            if (_guidTypeConvertor != null)
                store.Conventions.IdentityTypeConvertors.Remove(_guidTypeConvertor);
            return store;
        })
            .As<IDocumentStore>()
            .SingleInstance();

        builder.Register<IFilesStore>(x =>
        {
            var fileStore = new FilesStore()
            {
                Url = "http://localhost:40000",
                DefaultFileSystem = "MyFS",
            }.Initialize();
            return fileStore;
        }).SingleInstance();

        return builder.Build();
    }
}

In the saga:

    protected override void ConfigureHowToFindSaga(SagaPropertyMapper<FileToOrderSagaData> mapper)
    {
        mapper.ConfigureMapping<StartFileToOrderSagaCommand>(m => m.DataId)
            .ToSaga(s => s.DataId);
    }

    public async Task Handle(StartFileToOrderSagaCommand message, IMessageHandlerContext context)
    {
        // Do Validation ValidateXmlCommand
        Data.DataId = message.DataId;
        await context.Send<ValidateXmlCommand>( x => { x.Filename = message.Filename; x.CustomerId = message.CustomerId; });
    }

Here's the stack trace:

System.ArgumentException: Could not convert identity to type System.Guid because there is not matching type converter registered in the conventions' IdentityTypeConvertors
at Raven.Client.Document.GenerateEntityIdOnTheClient.SetPropertyOrField(Type propertyOrFieldType, Object entity, Action`1 setIdentifier, String id) in C:\Builds\RavenDB-Stable-3.5\Raven.Client.Lightweight\Document\GenerateEntityIdOnTheClient.cs:line 167
at Raven.Client.Document.GenerateEntityIdOnTheClient.TrySetIdentity(Object entity, String id) in C:\Builds\RavenDB-Stable-3.5\Raven.Client.Lightweight\Document\GenerateEntityIdOnTheClient.cs:line 143
at Raven.Client.Document.InMemoryDocumentSessionOperations.<GenerateDocumentKeyForStorageAsync>d__99.MoveNext() in C:\Builds\RavenDB-Stable-3.5\Raven.Client.Lightweight\Document\InMemoryDocumentSessionOperations.cs:line 833
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Raven.Client.Document.InMemoryDocumentSessionOperations.<StoreAsyncInternal>d__96.MoveNext() in C:\Builds\RavenDB-Stable-3.5\Raven.Client.Lightweight\Document\InMemoryDocumentSessionOperations.cs:line 803
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.Persistence.RavenDB.SagaPersister.<Save>d__0.MoveNext() in C:\BuildAgent\work\c4d62ce02b983878\src\NServiceBus.RavenDB\SagaPersister\SagaPersister.cs:line 24
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.SagaPersistenceBehavior.<Invoke>d__1.MoveNext() in C:\BuildAgent\work\3206e2123f54fce4\src\NServiceBus.Core\Sagas\SagaPersistenceBehavior.cs:line 133
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.LoadHandlersConnector.<Invoke>d__1.MoveNext() in C:\BuildAgent\work\3206e2123f54fce4\src\NServiceBus.Core\Pipeline\Incoming\LoadHandlersConnector.cs:line 40
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.InvokeSagaNotFoundBehavior.<Invoke>d__0.MoveNext() in C:\BuildAgent\work\3206e2123f54fce4\src\NServiceBus.Core\Sagas\InvokeSagaNotFoundBehavior.cs:line 16
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.DeserializeLogicalMessagesConnector.<Invoke>d__1.MoveNext() in C:\BuildAgent\work\3206e2123f54fce4\src\NServiceBus.Core\Pipeline\Incoming\DeserializeLogicalMessagesConnector.cs:line 31
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.Persistence.RavenDB.OpenAsyncSessionBehavior.<Invoke>d__1.MoveNext() in C:\BuildAgent\work\c4d62ce02b983878\src\NServiceBus.RavenDB\SessionManagement\OpenAsyncSessionBehavior.cs:line 21
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.InvokeAuditPipelineBehavior.<Invoke>d__1.MoveNext() in C:\BuildAgent\work\3206e2123f54fce4\src\NServiceBus.Core\Audit\InvokeAuditPipelineBehavior.cs:line 18
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.SubscriptionReceiverBehavior.<Invoke>d__1.MoveNext() in C:\BuildAgent\work\3206e2123f54fce4\src\NServiceBus.Core\Routing\MessageDrivenSubscriptions\SubscriptionReceiverBehavior.cs:line 29
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.ProcessingStatisticsBehavior.<Invoke>d__0.MoveNext() in C:\BuildAgent\work\3206e2123f54fce4\src\NServiceBus.Core\Performance\Statistics\ProcessingStatisticsBehavior.cs:line 27
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.ReceivePerformanceDiagnosticsBehavior.<Invoke>d__2.MoveNext() in C:\BuildAgent\work\3206e2123f54fce4\src\NServiceBus.Core\Performance\Statistics\ReceivePerformanceDiagnosticsBehavior.cs:line 40
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.TransportReceiveToPhysicalMessageProcessingConnector.<Invoke>d__1.MoveNext() in C:\BuildAgent\work\3206e2123f54fce4\src\NServiceBus.Core\Pipeline\Incoming\TransportReceiveToPhysicalMessageProcessingConnector.cs:line 37
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.MainPipelineExecutor.<Invoke>d__1.MoveNext() in C:\BuildAgent\work\3206e2123f54fce4\src\NServiceBus.Core\Pipeline\MainPipelineExecutor.cs:line 32
--- End of stack trace from previous location where exception was thrown --
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.ReceiveStrategy.<TryProcessMessage>d__7.MoveNext() in C:\BuildAgent\work\3206e2123f54fce4\src\NServiceBus.Core\Transports\Msmq\ReceiveStrategy.cs:line 109
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NServiceBus.TransactionScopeStrategy.<ProcessMessage>d__2.MoveNext() in C:\BuildAgent\work\3206e2123f54fce4\src\NServiceBus.Core\Transports\Msmq\TransactionScopeStrategy.cs:line 86

Searched all over to find out abt this, but I've got no clue as to what this Guid and converter thingy is.

Any help guys? Thx

you should show us some code perhaps. Or didn't you write any code? @ankit_sharma mother of stack trace? :D — Matthias Burger, Aug 15 '17 at 13:09
What does this line do `store.Conventions.IdentityTypeConvertors.Remove(_guidTypeConvertor);`? — mjwills, Aug 15 '17 at 13:17
It looks like you remove a Guid converter and then you get errors about not having a Guid converter. Maybe try not removing it? — juharr, Aug 15 '17 at 13:24
I removed the `store.Conventions.IdentityTypeConvertors.Remove(_guidTypeCon‌vertor);´ and now I'm getting System.FormatException: Guid should contain 32 digits with 4 dashes (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx). When my guid looked like: cea83a7c-5466-4a07-bece-cc5588e0765f. I'm using Guid.NewGuid() to create Guids. — solid_luffy, Aug 15 '17 at 13:30
@solid_luffy that is a new question then. This question is about the guid conversion. please ask in a new question. — tom redfern, Aug 15 '17 at 13:37
https://stackoverflow.com/questions/45694283/guid-giving-me-format-exception — solid_luffy, Aug 15 '17 at 13:51

score 0 · Accepted Answer · answered Aug 15 '17 at 22:53

store.Conventions.IdentityTypeConvertors.Remove(_guidTypeCon‌vertor);

is removing the Guid Type Convertor. This is why you are experiencing:

System.ArgumentException: Could not convert identity to type System.Guid because there is not matching type converter registered in the conventions' IdentityTypeConvertors

You should remove that line of code.

Can not convert to System.Guid

1 Answers1