New Export model to SAF component issue


I have intalled Karamba 3, I try to test the new component Export model to SAF and I get the following error message.

  1. Solution exception:Could not load file or assembly ‘Microsoft.Extensions.Configuration, Version=, Culture=neutral, PublicKeyToken=adb9793829ddae60’.

I’m working with Rhino 8 and .NETCore

Could you help me ?
Thank you

1 Like

Hi @melias,

sorry for the inconvenience!

Do you use Windows 10 or 11? Did you install all recent Windows updates?

Sadly I cannot reproduce the problem on my machine. Probably the dll in question needs to be made part of the files copied to the Karamba3D installation directory.

As a quick workaround I attached a zip archive with dlls. Please try to copy its contens to the installation directory of Karamba3D: (347.3 KB)

It would be interesting for me to know which of these files are necessary to make Karamba3D run on your machine.


It works !

Here is my windows configuration:
Édition Windows 10 Professionnel
Version 22H2
Installé le ‎ 23/‎12/‎2020
Build du système d’exploitation 19045.3930
Expérience Windows Feature Experience Pack 1000.19053.1000.0

Here the dlls I had to copy:

Thank you


I am glad that it works!
Are you sure that all of the above files are necessary?
I found out that the problem occurs only on Windows 10. On my Windows 10 machine it was sufficient to add ‘Microsoft.Extensions.FileProviders.Physical.dll’. Could you please check, whether this holds also on your machine?
– Clemens

After checking,
I confirm that all the dlls listed in my previous message are necessary.