[UWP] Could not find or load a specific file. (Exception from HRESULT: 0x80131621)

Question

Muzib 21

My UWP app is throwing exception and crashing on start up giving the following error in the file XamlTypeInfo.g.cs

System.IO.FileLoadException: 'Could not find or load a specific file. (Exception from HRESULT: 0x80131621)'

The error is in the following method:

public global::Windows.UI.Xaml.Markup.IXamlType GetXamlTypeByName(string typeName)
{
    return Provider.GetXamlType(typeName);
}

The value of the typeName is this: "Microsoft.UI.Xaml.Controls.StylesVersion"

How can I solve this?

Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,866 Reputation points

2021-08-16T05:25:29.237+00:00

Please check if has used WinUI nuget package, and have you add XamlControlsResources like this <XamlControlsResources xmlns="using:Microsoft.UI.Xaml.Controls" />
Oleg 1 Reputation point

2021-09-28T13:21:37.177+00:00

I also have this exception
Have you solved this problem?
Oleg 1 Reputation point

2021-09-28T13:24:15.24+00:00

It did not help.
I change my App.xaml like this:
<Application.Resources>
<controls:XamlControlsResources>
<controls:XamlControlsResources.MergedDictionaries>
<ResourceDictionary>
<SolidColorBrush x:Key="RedesignLightGray" Color="#FFF2F2F2"/>
<SolidColorBrush x:Key="RedesignGray" Color="#FF959596"/>
<SolidColorBrush x:Key="RedesignDarkGray" Color="#FF4F4F4F"/>
<SolidColorBrush x:Key="RedesignBlack" Color="#FF242424"/>
</ResourceDictionary>
</controls:XamlControlsResources.MergedDictionaries>
</controls:XamlControlsResources>
</Application.Resources>
oregonduckman 6 Reputation points

2022-03-28T20:03:43.493+00:00

I am also seeing this issue, has anyone determined a fix?

Your answer

Nico Zhu (Shanghai Wicresoft Co,.Ltd.) 12,866 Reputation points

2021-08-16T05:25:29.237+00:00

Please check if has used WinUI nuget package, and have you add XamlControlsResources like this <XamlControlsResources xmlns="using:Microsoft.UI.Xaml.Controls" />
Oleg 1 Reputation point

2021-09-28T13:21:37.177+00:00

I also have this exception
Have you solved this problem?
Oleg 1 Reputation point

2021-09-28T13:24:15.24+00:00

It did not help.
I change my App.xaml like this:
<Application.Resources>
<controls:XamlControlsResources>
<controls:XamlControlsResources.MergedDictionaries>
<ResourceDictionary>
<SolidColorBrush x:Key="RedesignLightGray" Color="#FFF2F2F2"/>
<SolidColorBrush x:Key="RedesignGray" Color="#FF959596"/>
<SolidColorBrush x:Key="RedesignDarkGray" Color="#FF4F4F4F"/>
<SolidColorBrush x:Key="RedesignBlack" Color="#FF242424"/>
</ResourceDictionary>
</controls:XamlControlsResources.MergedDictionaries>
</controls:XamlControlsResources>
</Application.Resources>
oregonduckman 6 Reputation points

2022-03-28T20:03:43.493+00:00

I am also seeing this issue, has anyone determined a fix?