Failed certification - App prelaunch and Crashes and hangs

Hi

I'm trying to pass the Windows App Certification (a necessity to upload to the Windows Store) and I fail on two things:

The app failed prelaunch test
"How to fix: In the OnLaunched method implementation of the app, ensure you handle the LaunchActivatedEventArgs.PreLaunch option to be prelaunch event aware."

I'm assuming this is because the function isn't implemented in the exporter? Or is there another way to pass fix it?

The second error I get is weirder:

Application MyApplication was detected by Windows Error Reporting and experienced a crash or hang.
"Investigate and debug the app to identify and fix the problem."

Now, I've played through the game several times in while debugging in visual studio and have yet to find an error. Is there any other way to detect what could be causing it?

I'm using Windows 10 Version 1607, OS build 14393.479

Visual Studio Professional 2015 Version 14.0.25431.01 Update 3

And using 287.9 of Fusion

Alright, thanks. I did remove the feature, but the crash remained. I've submitted it anyway saying to ignore the prelaunch fail, as well as explained the situation and the inability to find the bug, so I'll see if they approve.

Did you have the prelaunch problem?

How long ago was this?

I'm having such a hassle. I got a report back saying that it crashed upon start, and then when checking which hardware was used, it was a Lumia 640, which is well below the minimum hardware requirement for the game (I have a hard time seeing how anyone could make something on that device).

Thanks Yves, but I know it doesn't work with a 640, I have a 650 and it crashes on start (memory overload).

I did pass certification at last, despite the prelaunch error, but especially despite a crash or bug fail. I just explained that I couldn't find any crashes, so that it must be an error, and they approved.

What information is it specifically you want?

Ah, sorry, I thought you maybe wanted to see the result of the certification kit, or debugger or something:) I'm releasing Akihabara - Feel the Rhythm on the UWP store on the 26:th of December, and then on other platforms later in January. I'll post a link once it's live.