Unhandled Exception at startup Rhino 5 (x64) (Win7)

Rhino Rhino for Windows
1

Recently I have been experiencing an Unhandled Exception when starting Rhino 5 64 bit (Educational version) on Windows 7.

The Exception is harmless since I am given the chance to continue and everything works fine. However when trying to debug my custom plugin for Grasshopper Visual Studio breaks on this exception, so I can’t debug.

I have tried to reinstall Rhino but with no results also I have tried turning off all loaded rhino plugins (those who ship with and don’t ship with Rhino) but nothing so far.

Below is the exception detail given by the pop-up window and from the VS debugger.

Any ideas are most welcome.

Thanks,

Dion

************** Exception Text **************
System.FormatException: Index (zero based) must be greater than or equal to zero and less than the size of the argument list.
at System.Text.StringBuilder.AppendFormat(IFormatProvider provider, String format, Object[] args)
at System.String.Format(IFormatProvider provider, String format, Object[] args)
at RhinoSplash.LicensePanel.Init()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.SetVisibleCore(Boolean value)
at RhinoSplash.Splash.TabActivated(Object sender, TabActivatedEventArgs e)
at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
at RhinoSplash.TabPanel.set_ActiveTab(Tabs value)
at RhinoSplash.Splash.Splash_Load(Object sender, EventArgs e)
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at RhinoSplash.Splash.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

From my Visual Studio debugger:

System.FormatException was unhandled
HResult=-2146233033
Message=Index (zero based) must be greater than or equal to zero and less than the size of the argument list.
Source=mscorlib
StackTrace:
at UnhandledExceptionLogger.UnhandledDomainException(Object sender, UnhandledExceptionEventArgs args)
InnerException:

2

Thanks Dion, @brian, this looks like a bug in the RhinoSplash project. I added this as an issue to our bugtracker to try and figure out what the possible cause could be
http://mcneel.myjetbrains.com/youtrack/issue/RH-23150

3

Thanks for the quick reply Steve.

If there are any developments on this bug please let me know.

Thanks,

Dion

4

From the stack trace that you posted it looks like something is happening in the splash screen code on your computer so disabling plug-ins shouldn’t really have an effect.

5

Yeah I figured that as well. The thing is that it started this afternoon
out of the blue. I had been developing my plugin for Grasshopper the whole
day (running Rhino and Grasshopper in debug mode) and suddenly this pops
up.

I haven’t been updating or installing anything in the meantime so it makes
no sense to me that Rhino suddenly has a bug in the splash screen.

Please let me know if anything comes up.

Thanks

6

Just an idea: if you start debugging with the /nosplash argument (set this in the start up parameters in Visual Studio), does the exception go away? That will at least enable you to keep working.

7

That did it for me, thanks for the suggestion Menno!

Just out of curiosity; there a way to suppress the splash screen also when
I just start Rhino normally? Not that it is such a big deal, but it would
be nice to not see that message every time I start Rhino.

Thanks again for the input guys, now I can get back to work :slight_smile:

8

You can also add the start up argument /nosplash to the shortcut definition used to start the program.

9

Is it possible for a plugin to suppress the splash screen?

or a rhinoform to open:

Process.Start(rhinofile, “/nosplash”)? works if I directly link rhino but not a 3dm file.

nvm found the solution:

Process.Start(“C:\Program Files (x86)\Rhinoceros 5\System\Rhino4.exe”, "/nosplash " & rhinofile)

10

I believe this exception was fixed in Rhino 5 SR8.

11

Hi, having issues similar to Rhino 5 on Windows 10. The exe shows up in my task manager but no UI, and I can’t even end the task in the manager either.

And when it does show it, it crashes and then when it prompts debugging, crashes again?

The only thing I was able to scrape from the one time I was able to even get something, I got this:

Unhandled exception at 0x69031A8D (clr.dll) in Rhino4.exe: 0xC0000005: Access violation writing location 0x01C001BC.

I’ve been trying to replicate it, but it’s back to just running the exe but no UI…