The Uno Platform version of Community Toolkit is not supported on WinAppSDK

[DJDQfff]

Configuration

• Version:4.9.45
• targetplatfomr: android , windows(WinUI)
• .net 7

Trouble :

Showed by InteliSense: only x:Name and InitialComponent() . problem.

What I did

I tried to sovle the problem as https://platform.uno/docs/articles/get-started-wizard.html?tabs=windows#common-issues said.

But It doesn't work.

What  build error shows  is these:

• Unable to find content value on Uno.UI.SourceGenerators.XamlGenerator.XamlObjectDefinition .but don't say where the source error is .
• An error was found in Grid , An error was found in Page . Similar errors are showed for multiple xaml files.

And other problem that are the result of them.

It's my first time to use uno , multipled errors were solved from docs,but these problem can't solve step by docs

[limeniye]

It looks like a following problem: #12862

Update all your packages from 4.9.45 to 4.10.0-dev***
For example:

Directory.Build.props

    <PropertyGroup>
        <UnoVersion>4.10.0-dev.491</UnoVersion>
    </PropertyGroup>  

Directory.Packages.props

  <ItemGroup>
    <PackageVersion Include="Uno.WinUI" Version="$(UnoVersion)" />
    <PackageVersion Include="Uno.WinUI.RemoteControl" Version="$(UnoVersion)" />
    <PackageVersion Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="$(UnoVersion)" />
    <PackageVersion Include="Uno.WinUI.Skia.Gtk" Version="$(UnoVersion)" />
    <PackageVersion Include="Uno.WinUI.Skia.Linux.FrameBuffer" Version="$(UnoVersion)" />
    <PackageVersion Include="Uno.WinUI.Skia.Wpf" Version="$(UnoVersion)" />
    <PackageVersion Include="Uno.WinUI.WebAssembly" Version="$(UnoVersion)" />
  </ItemGroup>    

If you will see RuntimeIdentifiers error message add the following lines to your project:

    <PropertyGroup Condition="'$(TargetFramework)' == 'net7.0-windows10.0.19041'">
        <RuntimeIdentifiers>win10-x86;win10-x64;win10-arm64</RuntimeIdentifiers>
    </PropertyGroup>

For CommunityToolkit use the following approach:

    <ItemGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">
        <PackageReference Include="CommunityToolkit.WinUI.UI.Controls" />
    </ItemGroup>
    <ItemGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) != 'windows'">
        <PackageReference Include="Uno.CommunityToolkit.WinUI.UI.Controls" />
    </ItemGroup>

If after the following steps you will see the WindowsAppSDK version error -- update your SDK packages:

    <PackageVersion Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.22621.756" />
    <PackageVersion Include="Microsoft.WindowsAppSDK" Version="1.3.230602002" />

Rebuild your project twice.

[jeromelaban]

You may want to try the sample DataGrid sample here: https://github.com/unoplatform/Uno.Samples/tree/master/UI/UnoWCTDataGridSample. There are other samples for community toolkit as well in the same folder.