[Bug]: WinUI/WAS - ReactiveUI.WinUi nuget attempts to load the ReactiveUI.XamForms assembly when WhenActivated is called on a IActivatableViewModel

[matthewacme]

[Bug]: WinUI/WAS - ReactiveUI.WinUi nuget attempts to load the ReactiveUI.XamForms assembly when WhenActivated is called on a IActivatableViewModel

[dpvreony]

see if the following workaround prevents the issue. you need one of these in app initialisation before ReactiveUI is called.

if you're not doing any custom Splat DI config.

ReactiveUI.PlatformRegistrationManager.SetRegistrationNamespaces(RegistrationNamespace.WinUI);

if you're doing any custom config to Splat etc. you'll need something along the lines of. (you might want this version anyway so it's clearer when ReactiveUI is being set up)

Locator.CurrentMutable.InitializeSplat();
Locator.CurrentMutable.InitializeReactiveUI(RegistrationNamespace.WinUI); 

If the Assembly scanning is the issue, this should prevent it.

[matthewacme]

@dpvreony

Thank you, that worked perfectly...

hopefully anyone else coming across this bug will find this answer.

[anaisbetts]

Are you breaking in on first-chance exceptions? This is expected but this exception should be handled

[matthewacme]

No, I am not catching it on First-chance exceptions. The error is getting raised up into my code, so apparently the Reactive Code is NOT properly handling that first exception. Here is a screen shot of it happening in the example code at the top level of the project and as you can see it's percolating all the way up to the top level app code and not being handled / suppressed in the library ... ***@***.*** ***@***.*** Matthew C. Hintzen [he-him-his] | Windows Washer * w - ***@***.******@***.***> p - 321.234.8839 * From: Ani Betts ***@***.***> Sent: Tuesday, April 16, 2024 8:40 AM To: reactiveui/ReactiveUI ***@***.***> Cc: Matthew Hintzen ***@***.***>; Author ***@***.***> Subject: Re: [reactiveui/ReactiveUI] [Bug]: WinUI/WAS - ReactiveUI.WinUi nuget attempts to load the ReactiveUI.XamForms assembly when WhenActivated is called on a IActivatableViewModel (Issue #3786) Are you breaking in on first-chance exceptions? This is expected but this exception should be handled - Reply to this email directly, view it on GitHub<#3786 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/ACVGS2A33N3QR7D7QSLIAGDY5ULYVAVCNFSM6AAAAABGIC2WXGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDANJYHE4TIMZVGU>. You are receiving this because you authored the thread.Message ID: ***@***.******@***.***>>

[matthewacme]

Thanks so much David, I'll put that in as soon as I squash this current bug I'm working on, and let you know in the Git Issue if that fixed it! ***@***.*** Matthew C. Hintzen [he-him-his] | Windows Washer * w - ***@***.******@***.***> p - 321.234.8839 * From: David Vreony ***@***.***> Sent: Tuesday, April 16, 2024 9:06 AM To: reactiveui/ReactiveUI ***@***.***> Cc: Matthew Hintzen ***@***.***>; Author ***@***.***> Subject: Re: [reactiveui/ReactiveUI] [Bug]: WinUI/WAS - ReactiveUI.WinUi nuget attempts to load the ReactiveUI.XamForms assembly when WhenActivated is called on a IActivatableViewModel (Issue #3786) see if the following workaround prevents the issue. you need one of these in app initialisation before ReactiveUI is called. if you're not doing any custom Splat DI config. ReactiveUI.PlatformRegistrationManager.SetRegistrationNamespaces(RegistrationNamespace.WinUI); if you're doing any custom config to Splat etc. you'll need something along the lines of. (you might want this version anyway so it's clearer when ReactiveUI is being set up) Locator.CurrentMutable.InitializeSplat(); Locator.CurrentMutable.InitializeReactiveUI(RegistrationNamespace.WinUI); If the Assembly scanning is the issue, this should prevent it. - Reply to this email directly, view it on GitHub<#3786 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/ACVGS2CMJ4JRSLCQWNNFG4LY5UOZZAVCNFSM6AAAAABGIC2WXGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDANJZGA2DMNBUHE>. You are receiving this because you authored the thread.Message ID: ***@***.******@***.***>>