How to do Generative Design in Civil3D 2025.2.1

Generative Design
,
1

I would like to do Generative Design in Civil3D.
I know that this is not an officially supported method, but I set it up in the following way.

  1. Open the folder where the Dynamo for Revit 2025 package is installed.
    (C:\ProgramData\Autodesk\RVT 2025\Dynamo\3.3\packages)
  2. Copy the contents of (1) to the folder where the Dynamo for Civil 3D 2025 package is installed.
    (C:\ProgramData\Autodesk\C3D 2025\Dynamo\3.3\packages)
    image
    image857Ă—312 13.7 KB

I was able to make the Generative Design tab appear on Civil3D2025 using the above method.

image
image1934Ă—440 34.1 KB

However, when I ran “Three Box Massing.dyn,” a sample of Revit’s Generative Design, in Civil3D’s GD as a test, I received an error message like the one on the screen below.
The image below shows the result of GD “Random”, which took a long time and did not show any geometry, even though it was a simple calculation.

image
image3163Ă—2185 269 KB

How can I do GD in Civil3D2025? I would appreciate it if you could let me know.

â– Revit 2025.4.2
Dynamo Core 3.3.0.6316
Dynamo Revit 3.3.0.6523

â– Civil3D 2025.2.1
Dynamo Core 3.3.1.7726
Dynamo Civil 3D 3.0.0.1276

2

:thinking:

1 Like
3

I have the same problem too since I updated to the 2025 version.