MongoDB is unavailable.

[ppsurcao]

Modify services.AddWorkflow(x => x.UseMongoDB(@"mongodb://localhost:27017", "workflow"));, then directly start the WorkflowCore.Sample04 project.

An error is immediately thrown in the Deserialize method of the DataObjectSerializer file:

MongoDB.Bson.BsonSerializationException: "Type WorkflowCore.Sample04.MyDataClass is not configured as a type that is allowed to be deserialized for this instance of ObjectSerializer."

I tried adding the following code before the program starts:

csharp
var objectSerializer = new ObjectSerializer(type => ObjectSerializer.DefaultAllowedTypes(type) || type.FullName.StartsWith("WorkflowCore"));
BsonSerializer.RegisterSerializer(objectSerializer);

The error disappeared, but based on the database data, the following code:

csharp
.WaitFor("MyEvent", (data, context) => context.Workflow.Id, data => DateTime.Now).Output(data => data.Value1, step => step.EventData)

did not assign values correctly, which caused the workflow to fail to proceed.