Rhino 8 Crashing

Rhino Rhino for Windows
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1

Rhino 8 is no longer opening for me. Rhino 7 opened just fine. I had 8.9 and it would not work. I uninstalled rhino 8 and reinstalled the latest rhino 8 but it still will not work. The following is the crash report I get:
[ERROR] FATAL UNHANDLED EXCEPTION: System.IO.FileNotFoundException: Could not load file or assembly ‘Microsoft.Web.WebView2.Core, Version=1.0.1938.49, Culture=neutral, PublicKeyToken=2a8ab48044d2601e’. The system cannot find the file specified.
File name: ‘Microsoft.Web.WebView2.Core, Version=1.0.1938.49, Culture=neutral, PublicKeyToken=2a8ab48044d2601e’
at RhinoWindows.Runtime.EtoStyles.Apply(Platform platform)
at RhinoWindows.Runtime.Initialization.Start(String s)
at dotnetstart.DotNetInitialization.InitializeRhino(String args)
at dotnetstart.DotNetInitialization.Start(String args)
at dotnetstart.Program.Start(IntPtr arg, Int32 argLength)
[END ERROR]

Any ideas what may be causing Rhino 8 to not work? Is there a way to get my Rhino 8 files to Rhino 7 until Rhino 8 works again?

2

Let’s try running in .netframework using the To start Rhino in .NET Framework once method

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image473×645 109 KB

3

I followed the following steps and it worked. Thank you!

To change Rhino to always use .NET Framework using the Registry:

  1. Run RegEdit
  2. Browse to HKEY_CURRENT_USER\Software\McNeel\Rhinoceros\8.0\Global Options
  3. Create a REG_SZ value named DotNetRuntime and set its data to netfx
4

Thanks for the update, this has been happening to a small set of users after the October Windows update. I’ve added this thread to the bug report, when more information becomes available we can let you know. Great that we got you going but its not a fix per say, more of a bandaid.