Lypos48

Both. 1. trying to open it, close it, then open it again. And also 2. when i finished import prozess, succesfully!, exit, then cklick again the plugin to start a next import process. My LB Theme is the default one.

Yes, click X is the same behaviour. MAME Software Lists Import Tool plugin has the Version 6.0.2.

Is this normal? When i start MAME Software Lists Importer, window pop up, i cancel, then start MAME Software Lists Importer again. Nothing happens. I have to restart LB to make MAME Software Lists Importer to work. For once only. Closing it and start again, nothing happens. Restart again and so on... It´s only me? (LB v13.22, Windows 10)

and when i try to import other system_softlist.yml and mess.xml from included Folder mess-curator\data\0.278\, then an error ocour: Object reference not set to an instance of an object. App: LaunchBox Version: 13.22 Theme: Default Type: System.NullReferenceException Site: Void UpdateExistingGame(Unbroken.LaunchBox.Plugins.Data.IGame, MameCuratedPlatformSoftlistImporter.RomEntry, Unbroken.LaunchBox.Plugins.Data.IEmulator, Unbroken.LaunchBox.Plugins.Data.IPlatform) Source: MameCuratedPlatformSoftlistImporter at MameCuratedPlatformSoftlistImporter.ImportProcessor.UpdateExistingGame(IGame existingGame, RomEntry entry, IEmulator gameEmulator, IPlatform platform) at MameCuratedPlatformSoftlistImporter.ImportProcessor.ProcessImport(List`1 selectedPlatforms, IProgress`1 progress, CancellationToken cancellationToken) at MameCuratedPlatformSoftlistImporter.ImporterWizardForm.<>c__DisplayClass26_0.<btnStartProcessing_Click>b__3() at System.Threading.Tasks.Task`1.InnerInvoke() at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state) --- End of stack trace from previous location --- at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread) --- End of stack trace from previous location --- at MameCuratedPlatformSoftlistImporter.ImporterWizardForm.btnStartProcessing_Click(Object sender, EventArgs e) at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_0(Object state) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

I have tried out "MESS Curator Tool" and "MAME Curated Platform Softlist Importer for LaunchBox". This are my experience (on Windows 10 Enterprise and LB 13.22, Python 3.13 installed, MAME 0.277). I have no coding experience and i have to say it is very difficult to to make this horse to run. But after days i have created my currated softlist roms [27GB] and then want to import it to LB. But the Softlist Importer Plugin says at Step 5/Processing -> it skipped all Games because they already exist [of cause they exist in my folder but not in LB] and it created 0 Platforms in LB. Why? So no Platforms, no Systems, no Roms at all to see in LB.