Dynamo SandBox versions =Dynamo Core 2.18,2.13.1,2.16 not running Geometry nodes

I am getting this error on all geometry nodes


what should I do to resolve this.
I have installed three versions of dynamo core and got the same error.

You need to install one of the Autodesk core applications, such as Revit, AutoCAD, Civil 3D, Alias, FormIt, etc…

Note that for 2.18 that requires a 2024 version.

I have Revit 2019 on my machine

will I need that if I just want to use the sandbox?

The 2019 product line will limit you to Dynamo 2.6 if I recall, but it could go as far back as 2.0.4. As the geometry library for the core products updates, Dynamo has to update in unison, and previous geometry kernels won’t load in.

So if you want a modern Dynamo build, you’ll need to get a modern core product installed.

Note that 2019 has not been supported for almost a year and a half now so you’re exposed to a plethora of security issues; best to remove it and get an updated build.

Can we copy geometry library from Revit 2024 to have complete Dynamo 2.18 sandbox?

A few years back you could install Revit, not activate it and Dynamo Sandbox worked.
I don’t know if that is still the case.

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Pretty sure that copying the DLL like that would be a violation of the license. Best to install a 2024 if you want to utilize Dynamo.