Unable to publish RabbitMQ MassTransit events from UIPath using a Custom Activity

I am unable to publish RabbitMQ MassTransit events with Masstransit version 8.0 from my system. I am having UIPath community version 2022.4.3.
While the same events are getting published from another system having UIPath Enterprise Version 2021.10.5.

Also, I am able to publish RabbitMQ Masstransit events with Masstransit version 7.3.1.
While with another system having an enterprise version, the above-mentioned version’s events are not getting published.

What is the reason behind it? Is the issue associated with the studio version or is it due to any other reason?

The Error screenshot is attached herewith :

Hi!

Could you please paste the entire exception here?

Regards,
NaNi

The attachment here contains the exception message :

Hi!

Have you imported the namespaces from the imports panel in studio?

If not install the name spaces and try to publish it again.

Regards,
NaNi

I had installed all the required namespaces.
the same project works fine in another system with specifications mentioned initially.
Please help me with the reason for the event not getting published from one system and getting published from another one. (The project used to publish event in both the system is same).

Hi!

Check this out:

Regards,
NaNi

@THIRU_NANI Thanks for the support but I have not used JSON serialization options anywhere in the code for publishing the event.

Please help me find the solution for it as I am working right now on the same and facing difficulties.

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