Since January of this year, I've been experiencing an issue with "Launchbox Version 11.17 crashing whenever I add and tag a new game *after* downloading a database update (metadata.xml).
When I restore an old metadata.xml (from December 2023) of a backup, everything works fine again. The problem is reproducible directly; If I install Version 11.17 on another PC, activate the license, and I can add games. All good. But as soon as I perform the database update, Launchbox immediately throws the error message whenever a new game is tagged and crashes.
This is the error message:
Object reference not set to an instance of an object.
App: LaunchBox
Version: 11.17
Type: System.NullReferenceException
Site: System.String (System.Object)
Source: Unbroken.LaunchBox
at (Object )
at IteratorDic.SetDrivenParameter(Object , IteratorDic )
at Unbroken.LaunchBox.Search.LocalDbSearchResult.get_Platform()
at Unbroken.LaunchBox.Windows.Desktop.ViewModels.AddEditGameMetadataPageViewModel.DbSearchResult.CallSupportedStrategy(Object )
at Unbroken.LaunchBox.Windows.Desktop.ViewModels.AddEditGameMetadataPageViewModel.DbSearchResult..ctor(AddEditGameMetadataPageViewModel metadataPage, SearchResult result)
at Unbroken.LaunchBox.Windows.Desktop.ViewModels.AddEditGameMetadataPageViewModel.ComputePreparedDescriptor(List`1 item)
at DecoratorInitializer.PostTransactionOrder(Object , List`1 item, DecoratorInitializer )
at Unbroken.LaunchBox.Windows.Desktop.ViewModels.AddEditGameMetadataPageViewModel.<>c__DisplayClass279_0.ExcludePreparedMock()
at System.Windows.Threading.DispatcherOperation.InvokeDelegateCore()
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
--- End of stack trace from previous location where exception was thrown ---
at System.Windows.Threading.DispatcherOperation.Wait(TimeSpan timeout)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherOperation operation, CancellationToken cancellationToken, TimeSpan timeout)
at System.Windows.Threading.Dispatcher.Invoke(Action callback, DispatcherPriority priority, CancellationToken cancellationToken, TimeSpan timeout)
at Unbroken.LaunchBox.Windows.Threading.Invoke(Action callback, DispatcherPriority priority)
at Unbroken.LaunchBox.Windows.Desktop.ViewModels.AddEditGameMetadataPageViewModel.ViewPreparedDescriptor()
at Unbroken.LaunchBox.Windows.Threading.<>c__DisplayClass0_0.LogoutInterfaceAuthentication()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
Recent Log:
09:58:20 Exception
Note: The current version of Launchbox does not have this issue. Apparently, there has been a change in the structure of the metadata.xml file.
