MSIX manifest desktop7:ErrorReporting extension documentation invalid & doesn't work

[BernhardMarconato]

Hi,

there are multiple issues with the desktop7:ErrorReporting MSIX/AppxManifest declaration:

• desktop7:ErrorReporting is also listed at <Application><Extensions>, but actually it is only supported as a <Package><Extensions> extension (an error occurs when trying otherwise) https://learn.microsoft.com/en-us/uwp/schemas/appxpackage/uapmanifestschema/element-desktop7-extension https://learn.microsoft.com/en-us/uwp/schemas/appxpackage/uapmanifestschema/element-desktop7-package-extension
• desktop7:ErrorReporting requires the desktop7:CompatMode attribute to be 'classic', otherwise an error occurs. This is not documented.
• According to desktop7:CompatMode: CompatMode="classic" requires the Microsoft.classicAppCompat_8wekyb3d8bbwe capability. Is this true? It doesn't seem to make a difference.

In the end, the extension doesn't work at all anyways. It is impossible to register the package, as the error occurs:

DEP0700: Registration of the app failed. [0x80073CF9] Deployment Register operation with target volume C: on Package 98becea0-558f-499c-8a0b-4be7a69c8e8e_1.0.0.0_x64__zzgp0ykr93ede from: (AppxManifest.xml) failed with error 0x80070002.
ErrorFileInfo customcapabilities.cpp,146,80070002;customcapabilities.cpp,362,80070002;customcapabilities.cpp,429,80070002;customcapabilitystatehandler.cpp,34,80070002;customcapabilitystatehandler.cpp,178,80070002;deploymentmanager.cpp,1663,80070002;pipeline.cpp,36,80070002;pipeline.cpp,443,80070002;deploymentrequest.cpp,4268,80073CF9;
DetailedMessageInfo [{onecore\admin\appmodel\deploymentmanager\src\customcapabilitystatehandler.cpp(34)\appxdeploymentserver.dll!00007FFC6DADF9D1: (caller: 00007FFC6DADF2B6) Exception(2) tid(2d98) 80070002 The system cannot find the file specified. CallContext:[\DeploymentRequestRun\StateMachine\StateHandler] }];[{Only Stage and PreRegister Operations can be paused}];

It is not because the RuntimeExceptionHelperModule path file is not found, but it must be some internal error. Here is another similar report: https://developercommunity.visualstudio.com/t/Registering-an-application-with-the-Erro/10261444

Could you please check if this extension is able to be used for non-Microsoft apps, and extend the documentation with a working sample?

Thanks!

PS: here is an example manifest file (copied from the other report):

<?xml version="1.0" encoding="utf-8"?>
<Package xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10" xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10" xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities" xmlns:desktop="http://schemas.microsoft.com/appx/manifest/desktop/windows10" xmlns:desktop7="http://schemas.microsoft.com/appx/manifest/desktop/windows10/7" IgnorableNamespaces="uap rescap desktop desktop7 build" xmlns:build="http://schemas.microsoft.com/developer/appx/2015/build">
  ...
  <Extensions>
    <desktop7:Extension Category="windows.errorReporting" desktop7:CompatMode="classic" desktop7:Scope="user">
      <desktop7:ErrorReporting>
        <desktop7:RuntimeExceptionHelperModule Path="<project name>\mscordaccore.dll" />
      </desktop7:ErrorReporting>
    </desktop7:Extension>
  </Extensions>
  ...
</Package>