No valid Quickstart extensions being detected on latest Dev Home / Azure Extension combination

[adrastogi]

Dev Home version

0.1401.501.0

Windows build number

10.0.26220.5000

Other software

OS Build Version: 10.0.26220.5000.amd64fre.ge_current_directadept.240514-1700
.NET Version: .NET 8.0.4

Steps to reproduce the bug

On a system with the Dev Home Azure extension already installed:

1. Launch Dev Home and navigate to the Quickstart Playground page in the Machine Configuration page

Expected result

Dev Home should detect that there is a valid Quickstart extension provider available via the Azure extension package

Actual result

The feature says that no extension providers are installed. The logs have the error text below:

[2024/05/16 09:32:31.635 ERR] (QuickStartProjectService) Failed to get IQuickStartProjectProvider provider from 'Microsoft.Windows.DevHomeAzureExtension.Canary_0.900.501.0_x64__8wekyb3d8bbwe'
System.InvalidCastException: Specified cast is not valid.
at WinRT.IObjectReference.As[T](Guid iid)
at WinRT.IObjectReference.AsT
at System.Collections.Generic.IListImpl1.Make_IListObjRef() at System.Collections.Generic.IListImpl1.get_Count()
at System.Collections.Generic.List1..ctor(IEnumerable1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at DevHome.SetupFlow.Services.QuickStartProjectService.GetQuickStartProjectProvidersAsync()
[2024/05/16 09:32:31.642 INF] (QuickstartPlaygroundViewModel) No installed Quickstart providers detected

Included System Information

CPU: AMD Ryzen Threadripper PRO 3945WX 12-Cores
Physical Memory: 63.86GB (44.57GB free)
Processor Architecture: x64

Included Extensions Information

Extensions:
Microsoft.Windows.DevHome.Dev_0.1301.480.0_x64__8wekyb3d8bbwe (Core Widget Extension)
Microsoft.Windows.DevHome.Dev_0.1301.480.0_x64__8wekyb3d8bbwe (Hyper-V Extension)
Microsoft.Windows.DevHomeAzureExtension.Dev_0.800.480.0_x64__8wekyb3d8bbwe (Dev Home Azure Extension (Dev))
9932MartCliment.WingetUIWidgets_0.5.0.0_x64__g91dtg5srk15g (WingetUI Widgets (Preview))
Microsoft.Windows.DevHomeGitHubExtension.Canary_0.1400.500.0_x64__8wekyb3d8bbwe (Dev Home GitHub Extension (Canary))
Microsoft.Windows.DevHomeAzureExtension.Canary_0.900.501.0_x64__8wekyb3d8bbwe (Dev Home Azure Extension (Canary))
Microsoft.Windows.DevHome.Canary_0.1401.501.0_x64__8wekyb3d8bbwe (Core Widget Extension)
Microsoft.Windows.DevHome.Canary_0.1401.501.0_x64__8wekyb3d8bbwe (Hyper-V Extension)

Widget Service:
MicrosoftWindows.Client.WebExperience_524.13200.0.0_x64__cw5n1h2txyewy

[adrastogi]

False alarm- the kicker was the dev versions being also installed, related to #2451

(h/t to @jaholme for the psychic debugging)