Reactiveui: [BUG] 9.14.3 thows exception in UWP - You are referencing the Portable version of ReactiveUI in an App

[harvinders]

Describe the bug

Using 9.14.3 in UWP project throw following exception

  | Name | Value | Type
-- | -- | -- | --
▶ | e | {System.TypeInitializationException: The type initializer for 'ReactiveUI.RxApp' threw an exception. ---> System.Exception: You are referencing the Portable version of ReactiveUI in an App. Please change your reference to the specific version for your platform found here: https://reactiveui.net/docs/getting-started/installation/nuget-packages at ReactiveUI.PlatformRegistrations.Register(Action2 registerFunction) in d:\a\1\s\src\ReactiveUI\Platforms\netstandard2.0\PlatformRegistrations.cs:line 19 at ReactiveUI.DependencyResolverMixins.InitializeReactiveUI(IMutableDependencyResolver resolver) in d:\a\1\s\src\ReactiveUI\Mixins\DependencyResolverMixins.cs:line 39 at ReactiveUI.RxApp.<>c.<.cctor>b__11_0() in d:\a\1\s\src\ReactiveUI\RxApp.cs:line 97 at Splat.InternalLocator.RegisterResolverCallbackChanged(Action callback) in d:\a\1\s\src\Splat\ServiceLocation\InternalLocator.cs:line 117 at Splat.Locator.RegisterResolverCallbackChanged(Action callback) in d:\a\1\s\src\Splat\ServiceLocation\Locator.cs:line 69 at ReactiveUI.RxApp..cctor() in d:\a\1\s\src\ReactiveUI\RxApp.cs:line 90 --- End of inner exception stack trace --- at ReactiveUI.ReactiveCommand.Create[TParam,TResult](Func2 execute, IObservable`1 canExecute, IScheduler outputScheduler) in d:\a\1\s\src\ReactiveUI\ReactiveCommand\ReactiveCommand.cs:line 230 at App3.ViewModels.ShareTargetViewModel..ctor()} | System.Exception {System.TypeInitializationException}

9.13.1 is working though.

Steps To Reproduce
Include Reactive.UI.Fody to UWP project

Environment

• OS: Windows 10
• Version 1803
• Device: Desktop

[glennawatson]

Hi there,

Do you have a sample app you can provide at all?

Thanks.

[harvinders]

Sure, I will try to reproduce with bare minimum code. I used the latest WTS and added a ReactiveUI.Fody package. Any invocation leads to that error. I will update the issue, as soon I reproduce it with a small WTS project.

[harvinders]

@glennawatson I have added a sample app on github ReactiveUITestApp1
The target is 1809 with min target of 1803. The OS is 1803. I am using Visual Studio 2019, with WTS (3.2).

Version 9.14.1
When I create the ReactiveCommand in the ctor of MainViewModel the exception is thrown.

Version 9.12.1
The exception goes away.

I tried to reproduce it with blank UWP app, I failed to reproduce it. Not sure what is it that WTS adds that causes this issue.

[glennawatson]

Our minimum requirement for UWP is 10.0.17763.0

You should change

<TargetPlatformMinVersion>10.0.17134.0</TargetPlatformMinVersion>

to

<TargetPlatformMinVersion>10.0.17763.0</TargetPlatformMinVersion>

[glennawatson]

I tested with your test application with the changes recommend above. Your application doesn't crash so closing this issue.

[lnaie]

If you have the sdk numbers installed and still doesn't work, then you might want to upgrade your win10, if it wasn't done in a while.