9,194 questions
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Does anybody else have issues with sideloading after updating to Visual Studio 2026?
I recently updated my Visual Studio to the newest version (2026). Since I updated, my Android devices no longer appear in the list of devices. But even worse, since the update they don't appear in my ...
0
votes
0
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47
views
MAUI .NET 9 Android: "Application APK file path is not found" in Rider for both Debug and Run, simulator and physical device
I'm trying to debug and run a .NET MAUI Android app targeting .NET 9 in JetBrains Rider (2025.1.3).
SDKs installed:
9.0.308 [C:\Program Files\dotnet\sdk]
10.0.100 [C:\Program Files\dotnet\sdk]
...
- 29
0
votes
0
answers
21
views
System.MissingMethodException: CommunityToolkit.Maui.Views.AvatarView in .NET MAUI 10
I'm getting an exception when trying to open a Page View that uses any CommunityToolkit.Maui view/control.
I am building the app with .Net MAUI 10 <MauiVersion>10.0.10</MauiVersion>.
I ...
- 257
0
votes
1
answer
53
views
Custom font size is not setting up from ResourceDictionary
I am working on a MAUI windows application. I made a resource directory file for font.xaml in Resources\Styles and configured it in App.xaml.
<ResourceDictionary
xmlns="http://schemas....
- 629
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49
views
MAUI - Access XAML element from a different class code behind
I'm working on my first MAUI app. It consists of two screens, switchable via a tab control.
Now to my issue - I have page MainPage.xaml with MainPage.xaml.cs and also AboutPage.xaml with AboutPage....
0
votes
1
answer
51
views
.NET Maui Aspire integration not resolving ASP.NET Core Web API
I am trying to use the new .NET Maui Aspire integration to make my development life easier and I cannot get the service discovery to work where the app detects the API's URL. I'm following this https:/...
- 11
0
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answers
35
views
Deep linking in NET9 MAUI
In my NET9 MAUI application, I try to implement the deeplink following the Microsoft documentation. When I send a request, it gets to the OnCreate in the MainActivity.
[Activity(Theme = "@style/...
- 6,872
3
votes
1
answer
49
views
Binding data to a ContentView in Syncfusion Popup (MAUI)
I'm trying to have a Syncfusion Popup in my app. Because of the size and for reusability I put the Popup's content into a separate ContentView. However this makes the Binding to the content fail. I ...
- 594
1
vote
0
answers
63
views
Start Android emulator with .NET Maui app from .NET Aspire dashboard
I have a .NET 10 MAUI app configured with Aspire 13. When I start the Aspire project and the dashboard launches, I ensure that the emulator is running.
Steps to reproduce
Start Visual Studio
Create a ...
- 11
0
votes
2
answers
128
views
Chain validation failed: .NET MAUI 9 Android App and Azure Web App
I have several .NET MAUI 9 and Xamarin.Forms apps in production, all connecting to an Azure Web App with two instances and a direct HTTP endpoint that handles hundreds of requests per minute.
Lately ...
0
votes
1
answer
90
views
I'm having trouble masking my entry control to a phone number mask. Why?
I have a MAUI app. The initial XAML markup looks like this:
<mops:PopupPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
xmlns:mops="clr-namespace:Mopups....
- 166
1
vote
0
answers
44
views
Xamarin Forms - Last Android version supported
What is the last version of Android that is supported for Xamarin Forms? I'm trying to update my app to the last possible version of Android for Xamarin Forms. I know I'll have to switch to MAUI ...
- 143
-6
votes
3
answers
121
views
MAUI Disable Soft keyboard for Entry
How can I disable the keyboard for a specif entry?
I have tried using the MAUI Community Toolkit but have had no success.
- 29
0
votes
0
answers
44
views
.NET 10 MAUI Hot Reload fails: “No method by the name ‘GetProjectFullPathAsync’ is found”
After updating my Mac to macOS Tahoe 26.0.1 and Xcode 26, the XAML Hot Reload in my .NET 10 MAUI projects stopped working.
When I make any XAML change, the app stays unchanged and the output shows:
...
- 21
0
votes
1
answer
72
views
ScrollView on .NET 9 iOS doesn't work (text doesn't show)
I'm having an issue with a ScrollView on iOS after upgrading to .NET 9 (MAUI). The ScrollView area appears (the white/scrollable area is there) but the text inside is not visible at all. On Android ...
- 62
2
votes
1
answer
75
views
How can I solve an EF Core error querying SQLite?
I just got my .Net 9 Maui app working with EF Core and SQLite. I have one row of data in the database that looks like this:
I have a simple query that runs when the app loads. The repository method ...
- 832
1
vote
0
answers
89
views
How to solve Windows .NET MAUI app publish errors?
I have a .NET 9 MAUI Windows application.
I'm trying to publish it using the following command :
dotnet publish --framework net9.0-windows10.0.19041.0 --configuration Debug
--self-contained ...
- 6,114
0
votes
0
answers
43
views
Azure Pipeline Error - Building .Net MAUI App
I am trying to create an Azure Pipeline to build the APK for .net MAUI project.
Pipeline on run failing with below error.
*
C:\hostedtoolcache\windows\dotnet\sdk\8.0.414\Sdks\Microsoft.NET.Sdk\...
- 392
0
votes
1
answer
216
views
Android App must support 16kb by Nov 1st 2025. Can I release an update of App targetting API 34 post the timeline?
I am working on a .Net MAUI Android app which is built on .net 8 and Android framework target version is API 34 (Android 14).
I am not planning for upgrading my app to target API 35 soon. But I need ...
- 392
0
votes
1
answer
74
views
SupportedOSPlatformVersion {version} cannot be higher than TargetPlatformVersion {version}?
After I finished coding in maui,i began to build a mobile app in android.And met this problem.
- 11
0
votes
1
answer
49
views
LibVLCSharp.MAUI on iOS release build not working
I'm using LibVLCSharp.MAUI in my MAUI app to access RTSP cameras.
Everything works fine in Debug mode both for Android and iOS, then when attempting to publish the app in the stores I noticed first ...
- 11
1
vote
0
answers
56
views
Android HttpClient "Socket closed" error on slow connections, but server successfully processes request
I'm working on a .NET MAUI Android app that sends order data to a Web API using HttpClient. On normal Wi-Fi connections everything works fine, but when I throttle the network speed to around 56 kbps (...
2
votes
1
answer
94
views
How to resolve SSLPeerUnverifiedException: Hostname not verified in HttpsURLConnection in NET.MAUI Android app?
My NET.MAUI Android app is throwing SSLPeerUnverifiedException: Hostname 192.168.100.2 not verified when sending POST request to a PHP script located on my desktop's IIS localhost, as shown below.
...
0
votes
1
answer
39
views
Mac Catalyst (MAUI): IOHID InputReportCallback not firing, IOUSBInterfaceOpen returns kIOReturnNotPermitted (0xe00002e2) for custom HID device
I am developing a .NET MAUI Mac Catalyst app (sandboxed) that communicates with a custom vendor-specific HID USB device.
Within the Catalyst app, I’m using a native iOS library (built with Objective-C ...
- 9
0
votes
1
answer
42
views
.NET MAUI Community Toolkit State Container error for a State that does not exist in my application
I'm currently working on updating a Xamarin.Forms project to .NET MAUI. I am getting the following error when attempting to run the project:
CommunityToolkit.Maui.Layouts.StateContainerException: '...
- 11