# Crash rhino ArchiCADConnection

**URL:** <https://it.discourse.mcneel.com/t/crash-rhino-archicadconnection/936>\
**Category:** Rhino Windows\
**Created:** [15 Giugno 2016, 3:38pm UTC](https://it.discourse.mcneel.com/t/crash-rhino-archicadconnection/936 "2016-06-15T15:38:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Giuseppe\_Faraci](https://sea3.discourse-cdn.com/mcneel/user_avatar/it.discourse.mcneel.com/giuseppe_faraci/32/1038_2.png) [@Giuseppe\_Faraci](https://it.discourse.mcneel.com/u/Giuseppe_Faraci)\
**Post date:** [15 Giugno 2016, 3:38pm UTC](https://it.discourse.mcneel.com/t/crash-rhino-archicadconnection/936/1 "2016-06-15T15:38:21Z")

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Salve da qualche giorno quando apro Rhino e GH mi si chiude tutto improvvisamente ( ma non sempre!!)  
Ma finalmente ho scoperto cosa gli dava fastidio perché mi ha generato questo file di testo:

System::AppDomain::CurrentDomain-\>UnhandledException event occured

SENDER: Nome:DefaultDomain  
Nessun criterio di contesto.

EXCEPTION: System.NullReferenceException  
MESSAGE: Riferimento a un oggetto non impostato su un’istanza di oggetto.  
SOURCE: ArchiCADConnection  
CALL STACK  
in ArchiCADConnection.ArchiCADDocumentManager.Instance\_ConnectionChangedEvent(Object sender, ConnectionChangedEventArgs args)  
in ArchiCADConnection.ArchiCADConnectionChangedDelegate.Invoke(Object sender, ConnectionChangedEventArgs args)  
in ArchiCADConnection.ArchiCADConnectionManager.ProcessCommands()  
in System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)  
in System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)  
in System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)  
in System.Threading.ThreadHelper.ThreadStart()

Ho dovuto disinstallare il plug-in … (che stavo usando)  
Ha qualcuno di voi è successo?  
grazie