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Object reference not set to an instance of an object on SysOperationServiceController class

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Posted on by Pradeep Kumar Pacha...

Hello Experts,

I am facing a weird issue on my development environment for past couple of days or noticed it recently.

We have Product search configuration enabled in D365FO, so when updating the Product name from product translation form and it does async's update the table MCRInventTableIndex as part of the product search process. But recently it throwing an error on the standard class. SysOperationServiceController > Run() on the line Microsoft.Dynamics.Ax.Xpp.TaskSchedulerFactory::AosScheduler.IsThereCapacityForNextTask(null)

I am experiencing this only in my DEV environment and it is working fine in other environments.

I have tried the below steps so far and running out to options now.

1) Restarted IIS Express, all SQL, Batch and DMF services,

2) Restarted VM

3) Full build on all modules and individual modules with DB sync.

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Gunjan Bhattachayya 35,423 on at

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Hi Pradeep,

Please check if the Batch service ("Microsoft Dynamics 365 Unified Operations: Batch Management Service") is running on the Dev machine.

Also, please check if batch jobs are being executed successfully.

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Pradeep Kumar Pacha... 75 on at

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Thanks for your response. The batch service was turned off earlier to gain some performance on my DEV VM.

Still I have same issue, irrespective of the batch service is stopped/running. Also verified other batch jobs are working fine.

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Mav on at

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Hi PradeepKumar

Object reference not set to an instance in d365 is a common error & often due to either db synch or full build issue . Check this link with verified answer.

Hello Moderator.

I have few doubts regarding tagging for Ax versions.

My understanding is that Ax forum is exclusively for 2012 & below versions.

Using Ax current version means you are on Ax2012 r3 most recent version & Ax2012 tag means you are on r2 or older versions of Ax2012.

D365 finance & supply have their own exclusive forums.

However recently i have noticed multiple posts of d365 coming into Ax forum & also at times i m being advised to use tag of Ax2012 instead of Microsoft Dynamics Ax current version

Could you please clarify.

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Gunjan Bhattachayya 35,423 on at

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Pradeep,

Could you please share a screenshot of the server configuration from System admin > Setup > Server configuration.

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Sergei Minozhenko 23,093 on at

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Hi Pradeep,

Could you please, check the value for key "Aos.UseCustomTaskScheduler" in web.config (K:\AosService\WebRoot)? Does it have value "true"? Have you installed new updates recently or it just stopped working?

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Pradeep Kumar Pacha... 75 on at

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Thanks for your reply.

There is a typo on my question, Instead of Models I mentioned it as Modules.

I have already compiled each models once before I posted my question here.

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Pradeep Kumar Pacha... 75 on at

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Hi Sergei,

It just stopped working.

Yes the webconfig has it as true

<add key="Aos.UseCustomTaskScheduler" value="true" />

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Pradeep Kumar Pacha... 75 on at

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[quote user="Gunjan Bhattacharyya"]
Pradeep,

Could you please share a screenshot of the server configuration from System admin > Setup > Server configuration.
[/quote]
Hi Gunjan,

Here is the screenshot

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Sukrut Parab 71,710 Moderator on at

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Moved to D365 forum

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Anup Shah MSFT on at

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Do you also have <setting key="Aos.RunAsyncCpuReservationLimit"> in the web.config? if so what is the value set to?

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