Error message when exporting to Risa

[Jason.P]

We have a larger project that we have used Revit 2023 for. Used the Analytical Automation to add analytical lines to all our structural steel members. I can see the analytical lines and can select them. But when I go to Export to Risa, I get this error message.

Am I missing a step. I tried it on a much smaller 10 element model I quickly made and it worked. Is there something I need to do to a large model. 

Thanks for your help 

Cheers

JP

[JBelinski]

I'm having the same issue.  I have contacted Risa, but have not received a response yet.  Did you find a solution?

[Jason.P]

No not yet. Have you heard anything back yet.

[kieraGU56Z]

I'm having the same issue and found that only Materials are being exported. Have you been able to find a solution?

Edit: I got a reply from RISA support "from your description, I can tell you that the error message you're seeing "No analytical model was found in this Revit model" occurs if the number of physical elements (in the 3D Structure) does not match the number of elements in the analytical model. The 2023 RISA-Revit link currently expects the entire model to have an analytical model in order to process the link.
This means that the number of elements must match in both models (3D Structure and Analytical).
ALL physical elements, new, existing and demolished must have analytical members associated with them.

You have two options to fix this:
The first option is to identify the physical members that do not have an associated analytical member and to "manually" create their associated analytical members. Creating this analytical member is out of scope of RISA Support and will require support from Revit.

The second option is that you could make a copy of the Revit project, delete members that you do not wish to be brought over to the analytical model (or were not able to be created as an analytical member) and then import the structure to RISA-3D via the Revit link.

We do have an open enhancement that will allow the link to work even when only a portion of the model has an analytical model. So you won't have this type of issue in the future."