Here it is: a brand new node library for Civil 3D Dynamo! Developed since 2019 for internal use under the not so exciting name of the company I work for (‘Arkance systems’) and now it’s made public. A little information can be found here: [image] Arkance Systems Node Library for Civil 3D D…

Try and grab the list of DLLs the add-in brings with it. Duplicated ports is a dependency conflict, so knowing what it uses can quickly narrow things down.

Dear Jacob, Do you mean this: [image]

Yep. I am guessing that NewtonSoftJSON is the most likely culprit as it’s the root cause on similar Revit issues (seemingly 9/10 times). Can you get the version (open the file details)? @Anton_Huizinga should also do a quick review incase he has other DLLs in use which could be in conflict. The o…

NewtonSoft.JSON is indeed a referenced library. It refers to the one that is provided with the Civil 3D software. If the ArcGIS connector uses another version, and it loads first, then it can cause a conflict.

Version Newtonsoft.Json.dll in the ArcGis plugin folder: 13.0.3.27908

Which version of Civil 3D is that for?

Microsoft.Xaml.Behaviors.dll and Newtonsoft.Json.dll show up offhand. Version of newtonsoft seems to align though so it could be a combination of add-ins (welcome to DLL Hell ). I recommend looping in the add-in provider directly even if we can’t find the specific root as they are more likely to be …

Alright. I’ll contact our ICT department and add your advice. Hopefully we’ll find a solution or at least a workaround. Thank you very much for your time and help.

Arkance Systems Node Library Feedback Thread

Civil 3D

Anton_Huizinga January 19, 2026, 8:42pm 141

I’ll put it on the list. But this package is no longer maintained, so a fix will be done in The Civil Nodes package.

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Arkance Systems Node Library Feedback Thread

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