Hi I ama attempting to create a novel roof structure geometry via grasshopper rhino and then use the Oasys GSA plugin to analyse it under different load patterns. However when i try plugging the surface into the GSA componenet i need, create 2dMember i am faced with this error “1. Solution exception:Object reference not set to an instance of an object.” I have checked the lofted surface using a panel and it says untrimmed surface which is what i believe is required. I have tried all of chat GPTs suggested solutions; “DeBrep → join curves-> Loft” or Bake then set surface, but none seem to fix the problem, i was hoping someone may have the solution ! Thanks in advance
Shell-GSA trial.gh (51.2 KB)
Hi Callum,
Please run SystemInfo in the Rhino command line and post the results.
Hi Japhy,
please see results below:
Rhino 8 SR17 2025-3-7 (Rhino 8, 8.17.25066.07001, Git hash:master @ b14fcd901289f8715631debb308bc919a4988e07)
License type: Educational Lab License, build 2025-03-07
License details: LAN Zoo Network Node
Windows 11 (10.0.22631 SR0.0) or greater (Physical RAM: 16GB)
.NET 7.0.0
Computer platform: LAPTOP - Unplugged [61% battery remaining]
Hybrid graphics configuration.
Primary display: Intel(R) UHD Graphics (Intel) Memory: 1GB, Driver date: 8-20-2021 (M-D-Y).
> Integrated graphics device with 3 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Primary OpenGL: NVIDIA GeForce GTX 1650 Ti with Max-Q Design (NVidia) Memory: 4GB, Driver date: 11-11-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 561.19
> Integrated accelerated graphics device with 4 adapter port(s)
- Video pass-through to primary display device
OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
GPU Tessellation is: On
Redraw scene when viewports are exposed: On
Graphics level being used: OpenGL 4.6 (primary GPU’s maximum)
Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High
Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 11-11-2024
Driver Version: 32.0.15.6119
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 4 GB
Rhino plugins that do not ship with Rhino
Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.17.25066.7001
C:\Program Files\Rhino 8\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp “SectionTools”
It doesn’t appear that GSA supports the latest.
https://www.food4rhino.com/en/app/gsa
You can try switching your .net to the older version via SetDotNetRuntime (set to NETFramework) restart Rhino.