Rhino.Inside Revit 2026 assembly conflict

Rhino.Inside Revit
1

Hi there,

We’re having an issue where our Rhino.Inside doesn’t launch in Revit 2026 (it works fine in all our other revits.

It’s definitely a conflict with another add-in, who are a lovely and responsive bunch with whom we’ve ruled out their add-in doing anything untoward.

The issue the journal suggesting is that the current Rhino.Inside is built on the original 2026 build, 2026.0.4.0 rather than the latest 2026.4.0.0

It loads in seemingly ok into revit, (first below) until one tries to launch Rhino, at which point complains it can’t reach the zoo (second below)

image
image1084×291 22.1 KB

image
image1156×576 42.6 KB

and the Revit journal is showing the below:

Jrn.RibbonEvent “Execute external command:CustomCtrl_%CustomCtrl_%Rhino.Inside%More%CommandStart:RhinoInside.Revit.AddIn.Commands.CommandStart”
’ 1:< API_ERROR { : Assembly version conflict in some references in RhinoInside.Revit.AddIn.dll assembly
'Addin’s module RevitAPIUI of version 26.0.4.0 conflicts with same preloaded module of version 26.4.0.0
'Addin’s module RevitAPI of version 26.0.4.0 conflicts with same preloaded module of version 26.4.0.0 }

Is there any plan to have this updated in an upcoming release?

Many thanks!

Kent

2

Is that plugin ruled out or is it definitely a conflict?

Let’s try uninstalling Rhino.Inside Revit and then reinstalling.

What is your current Rhino.Inside Revit version?

3

Hey, I’m working with Kentburns on this.

I’ve reproduced this problem on various machines, and it’s consistent, even on a VM which had never had Revit or Rhino.Inside before, so I doubt that re-installing would help. But I can try, if you still think it’s worthwhile.

The version of Rhino.Inside Revit is 1.35.9540.6370

As for that plugin being definitely ruled out, they’ve emphasised the effort they’ve gone to, to isolate it and its dependencies from other add-ins, so that’s why we’re focusing on the apparent Revit build discrepancy.

4

yes, please do.

5

Thanks, Japhy. I tried that, but it didn’t make any difference.

6

Hi Japhy, do you have any further advice on this one?