3,037 questions
"Unable to activate Windows Store app ... Uknown error: 0x80040904"
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(256, 0%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EH%3C/text%3E%3C/svg%3E)
Hong
1,246
Reputation points
When I run a UWP app from VS, I get the following error:
Unable to activate Windows Store app.... The activation requested failed with error 'Operation not supported. Uknown error: 0x80040904'
In case, this may be related to the PC, I tested it on another PC and got the same error.
I have other UWP apps that can be deployed to these same two PCs and run flawlessly.
The even viewer has the following entry:
- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
<Provider Name="Microsoft-Windows-Immersive-Shell" Guid="{315a8872-923e-4ea2-9889-33cd4754bf64}" />
<EventID>5961</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>5961</Task>
<Opcode>0</Opcode>
<Keywords>0x4000000000000000</Keywords>
<TimeCreated SystemTime="2022-12-22T01:49:18.4583818Z" />
<EventRecordID>129</EventRecordID>
<Correlation ActivityID="{f4ecbe5c-13ba-000a-28d4-ecf4ba13d901}" />
<Execution ProcessID="5908" ThreadID="35372" />
<Channel>Microsoft-Windows-TWinUI/Operational</Channel>
<Computer>W10R7</Computer>
<Security UserID="S-1-5-21-1917869124-259510307-1805243227-1001" />
</System>
- <EventData>
<Data Name="AppId">my.app0!App</Data>
<Data Name="ErrorCode">-2147219196</Data>
<Data Name="PhaseFlags">33</Data>
</EventData>
</Event>
Could anyone offer a tip on the remedy for this?
Developer technologies | Universal Windows Platform (UWP)
{count} vote
-
Junjie Zhu - MSFT 21,646 Reputation points2022-12-22T06:20:40.433+00:00 Hello @Hong ,
Welcome to Microsoft Q&A!You can check if the version of Microsoft.NETCore.UniversalWindowsPlatform is the latest.
If not, it is recommended that you update it to the latest version in NuGet Manager.Thank you
Junjie -
Hong 1,246 Reputation points
2022-12-22T16:50:40.097+00:00 I figured it out. The culprit was the following in App.xaml:
<ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="ms-appx:///this-style-no-longer-exists.xaml"/> </ResourceDictionary.MergedDictionaries>I wish the compiler could detect it to avoid the runtime crash.
Sign in to comment
Sign in to answer