Launchbox still not working and crashing

[Jasonmcclure4848]

I have been gettin an error for a long time on launchbox and then it crashes. I posted in here a while back and gentlemen told me to get the beta version and that should fix it. I did that, and it still isn't working right. I have tried to give it some time hoping eventually it would be fixed, but it still does not work. Can someone please help me solve this problem? Thank you inadvance for your help.

 

Jason

 

Index was out of range. Must be non-negative and less than the size of the collection. (Parameter 'index')

App
Version: 13.25-beta-3
Theme:
Type:
site:
Source:

at Unbroken. LaunchBox.Windows.Desktop.MenuActions. ImportRomFilesMenuAction.DecideAttachedTransformer(Object def, IEnumerable'1 map, Object third, Boolean containsvisitor2)
at RequesterAuthenticatorComparator. RequestGlobalobjectNotifier(RomImportTask def, IEnumerable'1 map, String third, Boolean containsvisitor2, RequesterAuthenticatorComparator)
at Unbroken. LaunchBox.Windows.Desktop.MenuActions. ImportRomFilesMenuAction. EnsureTransformableTracker(Object config)
at ValidatorConfiguration. RequestGlobalobjectNotifier(RomImportTask config, ValidatorConfiguration)
at Unbroken. LaunchBox.Windows. Desktop.MenuActions. ImportRomFilesMenuAction. Finish(RomImportTask task, Boolean autoImported)
at AggregatorMap. RequestGlobalobjectNotifier(RomImportTask task, Boolean autoImported, AggregatorMap)
at Unbroken. LaunchBox.Windows.Desktop.MenuActions. ImportRomFilesMenuAction. RunExternalTask(RomImportTask task)
at OperationalMatcherRequester. RequestGlobalobjectNotifier(RomImportTask task, OperationalMatcherRequester)
at Unbroken. LaunchBox.Windows.Desktop. LaunchBoxAppSpecific. RunRomImport(RomImportTask task)
at ManagerMonitorRequester. RequestStaticCompressorstruct(Object, RomImportTask task, ManagerMonitorRequester)
at Unbroken. LaunchBox.Windows.Monitoring. GameDirectoryMonitor.SplitSystemProfiler()
at System. Threading. ExecutionContext. RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
-- End of stack trace from previous location ---
at System. Threading. ExecutionContext. RunInternal(ExecutionContext executionContext, Contextcallback callback, Object state)

Recent Log:

1:20:59 AM Exception|

LaunchBox

Default
System.ArgumentOutOfRangeException
Void ThrowArgumentOutofRange_IndexMustBeLessException()
System.Private.CoreLib

[Caroline Harper]

This error usually points to corrupted or invalid data in the LaunchBox database, often related to imported metadata or media.

Here are a few steps that typically resolve this:

1. Backup your LaunchBox folder first.

2. Go to your LaunchBox directory and open the Data folder.

3. Try temporarily renaming the Platforms.xml and Games.xml files (for the platform that crashes) and then restarting LaunchBox.
   This helps identify if a specific platform or game entry is causing the index error.

4. If LaunchBox opens after that, the issue is almost always a bad game entry or malformed metadata. You can re-import that platform cleanly.

5. Also, check Tools → Manage → Platforms and remove any empty or duplicate platforms.

6. Make sure you are running the latest stable release, not the beta, unless specifically asked by support.

7. If the crash happens during imports, try disabling image and metadata downloads temporarily and re-import.

If the issue persists, posting the full Diagnostics ZIP (Help → Upload Diagnostics) will help the devs pinpoint exactly which entry is causing the crash.

[Jasonmcclure4848]

Thank you so much. II'll try all of this and hopefully it will fix it.

 

Jason

[bran479]

I had this exact same error and turning off automatic rom import made it stop. It would always crash randomly. I made a debug report but I never can replicate it exactly. 

[bran479]

wish it was easier to track down which plaform is the issue.

[bran479]

dont have any duplicate platforms so not sure which causing the error.