[MAUI] File.Designer.cs is not generated for File.resx placed in MAUI Library

[wojciech-kulik]

Description

I migrated my shared Xamarin project to .NET MAUI Library. I need to use translations that are stored there. They need to be accessible from this library and from the MAUI app project that references this library.

However, when I copied Resources/File.resx to my MAUI Library, it doesn't auto-generate the corresponding Resources/File.Designer.cs file. I can create it manually, but I would like it to be auto-generated.

Steps to Reproduce

1. Create MAUI Library (net8.0-android)
2. Create MAUI App and reference MAUI Library.
3. Add Resources/Strings.resx with sample translations to MAUI Library.
4. Compile the app

Link to public reproduction project repository

No response

Version with bug

8.0.3 GA

Is this a regression from previous behavior?

Yes, this used to work in Xamarin.Forms

Last version that worked well

Unknown/Other

Affected platforms

iOS, Android, Windows, macOS

Affected platform versions

No response

Did you find any workaround?

No.

I tried adding it manually to csproj but it doesn't help:

  <ItemGroup>
    <Compile Update="Resources\Strings.Designer.cs"> 
      <DependentUpon>Strings.resx</DependentUpon>  
      <DesignTime>True</DesignTime>
      <AutoGen>True</AutoGen> 
    </Compile> 
  </ItemGroup>
  <ItemGroup>
    <EmbeddedResource Update="Resources\Strings.resx"> 
      <Generator>ResXFileCodeGenerator</Generator> 
      <LastGenOutput>Strings.Designer.cs</LastGenOutput> 
    </EmbeddedResource>
  </ItemGroup>

Relevant log output

No response

[github-actions]

Hi I'm an AI powered bot that finds similar issues based off the issue title.

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it. Thank you!

Open similar issues:

• [regression/8.0.3] [Bug] .net8 Android not building because Resources from resx not found. (#19117), similarity score: 0.72

Closed similar issues:

• Resources type or namespace does not exist (#13677), similarity score: 0.72
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• Resx file does not produce designer file, application is crashing (#7504), similarity score: 0.72
• MAUI template does not generate XAML (#17351), similarity score: 0.71

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[Zhanglirong-Winnie]

This issue has been verified using Visual Studio 17.11.0 Preview 4.0(8.0.61&8.0.3). Can repro on all platforms.