RhinoCode.exe - Failed getting nuget packages

I am trying to create my first plugin, all in Python, and I am having a problem when RhinoCode buids the plugin. The build succeeds, I do have a plugin, I can install it, the commands work, but I see this error:

RhinoCode.exe project build "C:\workspace\Rhino\IntelliClad\Plugin\IntelliClad.rhproj"
  0% - Preparing project
 10% - Preparing build path
 20% - Preparing plugin assembly
Error 5/27/2026 20:49:34 [rhinocode] Failed getting nuget packages: RhinoCommon==9.*
 50% - Preparing grasshopper plugin assembly
 21% - The are no GH components in this project. Skipping Grasshopper 1 plugin.
 60% - Adding shared resources
 90% - Creating yak package
100% - Complete

Any idea if this is a real problem and how to fix it?


Another issue is with the percentages, where 21 comes after 50: 0 - 10 - 20 - 50 - 21 - 60 - 90 - 100 :slight_smile:

Hi @Stefano_Menci in the process of following up missed discourse posts, we came across this one. Is this still an issue for you?

Hi Gijs,

I just ran the plugin builder script:

Yes, both problems are still there: The error about nuget and the wrong percentage process are still there.

No, it’s not really a problem for me. As I said in the original report, the process continues after the warning and everything works just fine.

I just noticed a 3rd error: the timestamp reported in the eerro message is in UTC instead of local timezone.

thanks @Stefano_Menci
RH-97551 Misleading (?) error messages

Looking at it now. There is no public RhinoCommon v9 yet so it throws the error message. I will make it not do that and I will also fix the regressed progress percentage.

For the timezone the fix could be to either show the client’s time, or simply add “UTC”.

All rhinocode log message are in UTC. The out-of-place error message is not shown anymore

RH-97551 is fixed in Rhino BETA