Rhino 8: Unable to Retrieve License from Zoo Server with .NET Core

Rhino Rhino for Windows
1

After the initial installation of Rhino 8, I am unable to retrieve a license from the Zoo server. However, by specifying .NET Framework in the registry, I can successfully obtain the license.

This issue seems specific to my PC, as other PCs can retrieve the license from the Zoo server using .NET Core without any problems.

Could you please advise on how to resolve this issue?

Thank you for your support.

2

Hi Yamada -
Have you tried a “repair” from the Windows OS Control Panel?
-wim

3

Hello,

Thank you for your suggestion. I performed the repair process and restarted my PC, but unfortunately, Rhino 8 crashes immediately after I enter the Zoo server information. A dump file was generated, and I am attaching it for your review.

I appreciate your assistance in resolving this issue.

Best regards,
RhinoCrashDump.zip (17.7 MB)

4

Thank you. I logged this issue as
RH-85474 Crash getting license from Zoo .NET Core

5

Hi @yamada.tomoyuki,

Thanks for the crash dump. This appears to be a crash related to the CAD Exchanger plugin, which uses .NET Framework directly via a C++/CLI assembly, even when running in .NET Core. The two are unfortunately not compatible with each other.

If you uninstall/disable CAD Exchanger, does it work in .NET Core?

If this is the culprit, they should be able to update their plugin to work with Rhino 8 running in .NET Core, so it might be a good idea to go to their customer support page and submit an issue on their site.

Hope this helps!
Curtis.

6

Thank you for your response. I was able to disable CAD Exchanger and successfully launch Rhino 8.

However, I am encountering an issue where I need to perform a repair installation of Rhino 8 and restart my PC after every Rhino update.

Is there any solution to address this issue?

Thank you for your assistance.