Grasshopper Loading Errors In Rhino 8

Rhino
1

Hello Everyone,
I have upgraded my Rhino License from Rhino 7 to Rhino 8. When I launch the Grasshopper I receive the following error. Any idea how to resolve this error?

image
image1346×953 232 KB

2

Hi Muhammad -

When you use the Rhino SetDotNetRuntime command to switch to NETFramework, and restart Rhino, does the error go away?
-wim

3

Hello wim,

Can you please elaborate the steps?

4

Hi Muhammad -

Here are those steps:

  • Close all but one instance of Rhino
  • Run SetDotNetRuntime
  • On the command line, click on the Runtime=NETCore option:
    image
  • Click on the NETFramework option:
    image
  • Click OK in the pop-up:
    image
  • Exit Rhino and launch Rhino
  • Run Grasshopper

-wim

5

Thank you very much, Wim. It worked :slight_smile:

6

Hi Muhammad -

That’s good, of course, but it isn’t necessarily a solution. Especially not in the long run.

When new plug-ins - or new versions of existing plug-ins, are written to target new features in the .NET Core 7 runtimes, they will fail to run when you are running Rhino in the .NET Framework 4.8 runtime. If you have identified which plug-in failed to load in Core, you should contact the developer and request an update of the plug-in.
-wim