I have been exploring Dynamo for Civil 2020 (Update 2) lately and creating AutoCAD objects from Dynamo went smoothly. But since recently node Object.ByGeometry returns only null value despite no other errors in workflow and in .dwg file nothing changes. If I create Solid in some other way (Solid.ByLoft…) the result is the same.
I reinstalled Dynamo via Autodesk Uninstall Tool/ Desktop App but it does not resolve the issue.
I had this same error before.
Tested on 2 PCs, one did work, but on the other I got nulls trying to create Solids.
I could create 2d curves, but not solids.
I followed the exact same steps apart from removing some of the extra files under AppData which may be the solution to my problem as running C3D as another user solves the issue after an uninstall. Testing just now
Win10 with the latest update at the time. I actually created a new thread for this issue as creating Dynamo solids from AutoCAD solids was resulting in a similar issue. Deleting my user profile from the local machine solved my issue.
Waking this thread in case somebody is investigating this issue:
I experienced the same lately. Last week everything fine and then suddenly the node won’t work for solid geometry. C3D2022.1 and win10 (10.0.18363 Build 18363).
I had a similar problem: the Autodesk.Object.ByGeometry node wouldn’t transfer Dynamo solids to C3D. At the same time, the same node had no problem transferring geometry if it was a curve.
Clearing the temp folder + restarting the PC solved the problem.