Unable to Debug Durable Entities on local machine

[harrict]

I'm trying to use Netherite with a durable function that also utilizes durable entities. The function app is a .NET 8 isolated function. I am trying to ensure the functionality works before publishing to Azure but when I test locally I get an error when calling any of the durable entity methods. When calling either SignalEntityAsync or CallEntityAsync I get an NullReferenceException at DurableTask.Core.Entities.OrchestrationEntityContext.AdjustOutgoingMessage. The null reference seems to be for this.innerContext.EntityParameters.EntityMessageReorderWindow.

More details:

• I tested the function not using Netherite, just using Azure Storage, and it works fine
• I've tried both Memory and SingleHost emulation modes as well as pointing directly to an event hub resource but still get the same error
• The entity is a basic counter entity that is a copy of the example on microsoft's site

[sebastianburckhardt]

Sorry about this. In fact, this behavior is consistent with known bugs / limitations.

There are two problems here currently:

• Support for isolated entities on Netherite has not yet been released (the PR is done, see Add support for isolated entities #358, but we are currently waiting for the next release of DF Extension before we can release it).
• The error NullReferenceException is not an acceptable error message since it does not describe the issue. We have fixed this error message (see fix NullReferenceException on backends that do not implement IEntityOrchestrationService Azure/durabletask#989) but that fix has also not yet been released.

[microsoft-github-policy-service]

This issue has been marked as duplicate and has not had any activity for 1 day. It will be closed for housekeeping purposes.