GroupDocs.Conversion not working on linux with .NET 8

GroupDocs.Conversion Product Family
,
1

Groupdocs.Conversion worked well with .NET 6 on docker linux. Since the upgrade to .NET 8, we receive “System.PlatformNotSupportedException : System.Drawing.Common is not supported on non-Windows platforms”.

System.Drawing.EnableUnixSupport trick is not supported anymore by microsoft since .NET 7 : Breaking change: System.Drawing.Common config switch removed - .NET | Microsoft Learn

Can you tell me if Groupdocs.Conversion support .NET 8 on linux container?

GroupDocs.Conversion.Exceptions.GroupDocsConversionException: The type initializer for ‘Gdip’ threw an exception.\n —> System.TypeInitializationException: The type initializer for ‘Gdip’ threw an exception.\n —> System.PlatformNotSupportedException: System.Drawing.Common is not supported on non-Windows platforms. See Breaking change: System.Drawing.Common only supported on Windows - .NET | Microsoft Learn for more information.\n at System.Drawing.SafeNativeMethods.Gdip.<>c.<.cctor>b__2_0(String _, Assembly _, Nullable`1 _)\n at System.Runtime.InteropServices.NativeLibrary.LoadLibraryCallbackStub(String libraryName, Assembly assembly, Boolean hasDllImportSearchPathFlags, UInt32 dllImportSearchPathFlags)\n at System.Drawing.SafeNativeMethods.Gdip.g____PInvoke|32_0(IntPtr* __token_native, StartupInputEx* __input_native, StartupOutput* __output_native)\n at System.Drawing.SafeNativeMethods.Gdip.GdiplusStartup(IntPtr& token, StartupInputEx& input, StartupOutput& output)\n at System.Drawing.SafeNativeMethods.Gdip…cctor()\n — End of inner exception stack trace —\n — End of inner exception stack trace —\n at bool \u0006\u0002\u001a+\u0002.\u0002(Exception \u0002)\n at void AggregateException.Handle(Func<Exception, bool> predicate)\n at void \u0006\u0002\u001a.\u0002(CancellationToken \u0002)\n at void GroupDocs.Conversion.Converter.\u0002(CancellationToken \u0002)\n at void GroupDocs.Conversion.Converter.Convert(Func document, Action<string, FileType, Stream> documentCompleted, Func<string, FileType, ConvertOptions> convertOptionsProvider, CancellationToken cancellationToken)\n

2

@frederic.geslin

For .NET 8 please use GroupDocs.Conversion.CrossPlatform package. This package uses cross-platform Aspose graphical library instead of System.Drawing.Common which is not supported on Linux.

3

Unfortunately we already use this package and the problem is still there…

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <Nullable>disable</Nullable>
    <ImplicitUsings>disable</ImplicitUsings>
    <GenerateDocumentationFile>true</GenerateDocumentationFile>
  </PropertyGroup>

  <ItemGroup>
    <EmbeddedResource Include="GroupDocs.Conversion.NET.lic" />
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="Aspose.3D" Version="24.11.0" />
    <PackageReference Include="Aspose.CAD" Version="24.11.0" />
    <PackageReference Include="Aspose.Cells" Version="24.12.0" />
    <PackageReference Include="Aspose.Diagram" Version="24.12.0" />
    <PackageReference Include="Aspose.Email" Version="24.11.0" />
    <PackageReference Include="Aspose.Finance" Version="24.12.0" />
    <PackageReference Include="Aspose.Font" Version="24.11.0" />
    <PackageReference Include="Aspose.GIS" Version="24.11.0" />
    <PackageReference Include="Aspose.HTML" Version="24.11.0" />
    <PackageReference Include="Aspose.Imaging" Version="24.12.0" />
    <PackageReference Include="Aspose.Note" Version="24.11.0" />
    <PackageReference Include="Aspose.PDF" Version="24.12.0" />
    <PackageReference Include="Aspose.PSD" Version="24.12.0" />
    <PackageReference Include="Aspose.PUB" Version="24.10.0" />
    <PackageReference Include="Aspose.Slides.NET6.CrossPlatform" Version="24.12.0" />
    <PackageReference Include="Aspose.SVG" Version="24.11.0" />
    <PackageReference Include="Aspose.SVG.Drawing.SkiaSharp" Version="24.11.0" />
    <PackageReference Include="Aspose.Tasks" Version="24.12.0" />
    <PackageReference Include="Aspose.Words" Version="24.12.0" />
    <PackageReference Include="Aspose.Zip" Version="24.12.0" />
    <PackageReference Include="GroupDocs.Conversion.CrossPlatform" Version="24.11.0" />
  </ItemGroup>
4

@frederic.geslin

May you please share a Dockerfile with sample code and the file so we could reproduce and analyze this issue?

5

We manage to make it work by removing the following references from the main csproj, Thank you

   <PackageReference Include="Aspose.3D" Version="24.8.0" />
    <PackageReference Include="Aspose.CAD" Version="24.8.0" />
    <PackageReference Include="Aspose.Cells" Version="24.9.0" />
    <PackageReference Include="Aspose.Diagram" Version="24.9.0" />
    <PackageReference Include="Aspose.Email" Version="24.8.0" />
    <PackageReference Include="Aspose.Finance" Version="24.8.0" />
    <PackageReference Include="Aspose.Font" Version="24.9.0" />
    <PackageReference Include="Aspose.GIS" Version="24.8.0" />
    <PackageReference Include="Aspose.HTML" Version="24.8.0" />
    <PackageReference Include="Aspose.Imaging" Version="24.9.0" />
    <PackageReference Include="Aspose.Note" Version="24.8.0" />
    <PackageReference Include="Aspose.PDF" Version="24.9.0" />
    <PackageReference Include="Aspose.PSD" Version="24.8.0" />
    <PackageReference Include="Aspose.PUB" Version="24.8.0" />
    <PackageReference Include="Aspose.Slides.NET6.CrossPlatform" Version="24.9.0" />
    <PackageReference Include="Aspose.SVG" Version="24.8.0" />
    <PackageReference Include="Aspose.SVG.Drawing.SkiaSharp" Version="24.8.0" />
    <PackageReference Include="Aspose.Tasks" Version="24.8.0" />
    <PackageReference Include="Aspose.Words" Version="24.9.0" />
    <PackageReference Include="Aspose.Zip" Version="24.8.0" />
6

@frederic.geslin

I’m glad the issue has been resolved.

Please let us know if you have any further questions.