I’m trying to run hops on Rhino 8. It works fine on Rhino 7.
Below is the log on rhino 8. I have removed all plugins that I can identify.
Let me know any information I can provide or how any details on how to troubleshoot this further. I have read many other similar posts on discourse but haven’t found a solution.
Thanks in advance,
Jon
RC [19:48:37 INF] Rhino compute started at 6/1/2025 7:48:37 PM
RC [19:48:37 DBG] Hosting starting
RC [19:48:37 DBG] Found module rhino.compute.ReverseProxyModule
RC [19:48:37 DBG] Initiliazing reverse proxy at 6/1/2025 7:48:37 PM
RC [19:48:37 DBG] Spawn children at startup is set to True
RC [19:48:37 INF] Now listening on: http://localhost:6500
RC [19:48:37 INF] Application started. Press Ctrl+C to shut down.
RC [19:48:37 INF] Hosting environment: Production
RC [19:48:37 INF] Content root path: C:\Users\JonMirtschin\AppData\Roaming\McNeel\Rhinoceros\packages\8.0\Hops\0.16.23\rhino.compute
RC [19:48:37 DBG] Hosting started
RC [19:48:41 INF] Starting compute.geometry instance on port 6001
CG [19:48:41 DBG] Logging to C:\Users\JonMirtschin\AppData\Local\Temp\Compute\Logs
CG [19:48:41 INF] Child process started at 1/06/2025 7:48:41 PM
CG [19:48:41 DBG] Registering idle span value of 3600 seconds
CG [19:48:42 INF] Compute 8.0.0.0, Rhino 8.19.25132.1001
CG [19:48:42 DBG] Rhino system directory: C:\Program Files\Rhino 8\System
CG [19:48:43 DBG] Hosting starting
RC [19:49:37 INF] Max concurrent requests = 0
RC [19:49:42 INF] Unable to start a local compute server
RC [19:49:42 ERR] HTTP POST /io responded 500 in 24177.3491 ms
System.Exception: Unable to start a local compute server
at rhino.compute.ComputeChildren.LaunchCompute(Queue1 processQueue, Boolean waitUntilServing) in D:\BuildAgent\work\4852f584398a78e4\src\rhino.compute\ComputeChildren.cs:line 229 at rhino.compute.ComputeChildren.GetComputeServerBaseUrl() in D:\BuildAgent\work\4852f584398a78e4\src\rhino.compute\ComputeChildren.cs:line 98 at rhino.compute.ReverseProxyModule.<>c.<InitializeChildren>b__5_0() in D:\BuildAgent\work\4852f584398a78e4\src\rhino.compute\ReverseProxy.cs:line 43 at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state) --- End of stack trace from previous location --- at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread) --- End of stack trace from previous location --- at rhino.compute.ReverseProxyModule.AwaitInitTask() in D:\BuildAgent\work\4852f584398a78e4\src\rhino.compute\ReverseProxy.cs:line 119 at rhino.compute.ReverseProxyModule.ReverseProxyPost(HttpRequest req, HttpResponse res) in D:\BuildAgent\work\4852f584398a78e4\src\rhino.compute\ReverseProxy.cs:line 179 at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger) at Serilog.AspNetCore.RequestLoggingMiddleware.Invoke(HttpContext httpContext) RC [19:49:42 ERR] Connection id "0HND0U5TN8H0M", Request id "0HND0U5TN8H0M:00000001": An unhandled exception was thrown by the application. System.Exception: Unable to start a local compute server at rhino.compute.ComputeChildren.LaunchCompute(Queue1 processQueue, Boolean waitUntilServing) in D:\BuildAgent\work\4852f584398a78e4\src\rhino.compute\ComputeChildren.cs:line 229
at rhino.compute.ComputeChildren.GetComputeServerBaseUrl() in D:\BuildAgent\work\4852f584398a78e4\src\rhino.compute\ComputeChildren.cs:line 98
at rhino.compute.ReverseProxyModule.<>c.b__5_0() in D:\BuildAgent\work\4852f584398a78e4\src\rhino.compute\ReverseProxy.cs:line 43
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
— End of stack trace from previous location —
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
— End of stack trace from previous location —
at rhino.compute.ReverseProxyModule.AwaitInitTask() in D:\BuildAgent\work\4852f584398a78e4\src\rhino.compute\ReverseProxy.cs:line 119
at rhino.compute.ReverseProxyModule.ReverseProxyPost(HttpRequest req, HttpResponse res) in D:\BuildAgent\work\4852f584398a78e4\src\rhino.compute\ReverseProxy.cs:line 179
at Microsoft.AspNetCore.Routing.EndpointMiddleware.g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
at Serilog.AspNetCore.RequestLoggingMiddleware.Invoke(HttpContext httpContext)
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication`1 application)
Rhino 8 SR19 2025-5-12 (Rhino 8, 8.19.25132.01001, Git hash:master @ 57e3eb280b0f32cbe59f53a554be5e8ffa66fc36)
License type: Not For Resale Lab, build 2025-05-12
License details: Cloud Zoo
Windows 11 (10.0.26100 SR0.0) or greater (Physical RAM: 32GB)
.NET 7.0.20
Computer platform: LAPTOP - Plugged in [100% battery remaining]
Hybrid graphics configuration.
Primary display: Intel(R) UHD Graphics (Intel) Memory: 1GB, Driver date: 8-13-2024 (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 Quadro T2000 with Max-Q Design (NVidia) Memory: 4GB, Driver date: 11-22-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 566.24
> Integrated accelerated graphics device (shares primary device ports)
- 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: 11-22-2024
Driver Version: 32.0.15.6624
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” 8.19.25132.1001
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.19.25132.1001
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.19.25132.1001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.19.25132.1001
C:\Program Files\Rhino 8\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 8.19.25132.1001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.19.25132.1001
C:\Program Files\Rhino 8\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 8.19.25132.1001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.19.25132.1001
C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp “SectionTools”