Is dotnet build the correct way to build ImageSharp from the command line?

[winscripter]

Hi! I'm trying to compile ImageSharp in order to test a new work-in-progress feature (using the command line), but it seems like it's failing with many errors - mostly related to VectorNCount and type inference errors. These errors also show up in the Visual Studio text editor.

Any advice? Is this expected, or am I not building the library correctly?

All syntax errors

C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\AnimationUtilities.cs(460,25): error CS1929: 'Span<uint>' does not contain a definition for 'Vector512Count' and the best extension method overload 'Numerics.Vector512Count<uint>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\AnimationUtilities.cs(498,25): error CS1929: 'Span<uint>' does not contain a definition for 'Vector256Count' and the best extension method overload 'Numerics.Vector256Count<uint>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\AnimationUtilities.cs(532,25): error CS1929: 'Span<uint>' does not contain a definition for 'Vector128Count' and the best extension method overload 'Numerics.Vector128Count<uint>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Common\Helpers\SimdUtils.HwIntrinsics.cs(706,27): error CS1929: 'Span<float>' does not contain a definition for 'Vector512Count' and the best extension method overload 'Numerics.Vector512Count<byte>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Common\Helpers\SimdUtils.HwIntrinsics.cs(744,27): error CS1929: 'Span<float>' does not contain a definition for 'Vector256Count' and the best extension method overload 'Numerics.Vector256Count<byte>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Common\Helpers\SimdUtils.HwIntrinsics.cs(784,27): error CS1929: 'Span<float>' does not contain a definition for 'Vector128Count' and the best extension method overload 'Numerics.Vector128Count<byte>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Common\Helpers\SimdUtils.HwIntrinsics.cs(921,27): error CS1929: 'Span<byte>' does not contain a definition for 'Vector512Count' and the best extension method overload 'Numerics.Vector512Count<byte>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Common\Helpers\SimdUtils.HwIntrinsics.cs(959,27): error CS1929: 'Span<byte>' does not contain a definition for 'Vector256Count' and the best extension method overload 'Numerics.Vector256Count<byte>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Common\Helpers\SimdUtils.HwIntrinsics.cs(997,27): error CS1929: 'Span<byte>' does not contain a definition for 'Vector128Count' and the best extension method overload 'Numerics.Vector128Count<byte>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\PixelFormats\HalfPixelOperations{TPixel}.cs(287,33): error CS1929: 'Span<float>' does not contain a definition for 'Vector512Count' and the best extension method overload 'Numerics.Vector512Count<float>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\PixelFormats\HalfPixelOperations{TPixel}.cs(307,33): error CS1929: 'Span<float>' does not contain a definition for 'Vector256Count' and the best extension method overload 'Numerics.Vector256Count<float>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\PixelFormats\HalfPixelOperations{TPixel}.cs(324,33): error CS1929: 'Span<float>' does not contain a definition for 'Vector128Count' and the best extension method overload 'Numerics.Vector128Count<float>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\Tga\TgaEncoderCore.cs(198,40): error CS0411: The type arguments for method 'TgaEncoderCore.FindEqualPixels<TPixel>(ReadOnlySpan<TPixel>, int)' cannot be inferred from the usage. Try specifying the type arguments explicitly.
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\Tga\TgaEncoderCore.cs(210,46): error CS0411: The type arguments for method 'TgaEncoderCore.FindUnEqualPixels<TPixel>(ReadOnlySpan<TPixel>, int)' cannot be inferred from the usage. Try specifying the type arguments explicitly.
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\Webp\ColorConverters\WebpColorConverter.Decoding.cs(706,37): error CS1929: 'Span<byte>' does not contain a definition for 'Vector512Count' and the best extension method overload 'Numerics.Vector512Count<ushort>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\Webp\ColorConverters\WebpColorConverter.Decoding.cs(731,37): error CS1929: 'Span<byte>' does not contain a definition for 'Vector256Count' and the best extension method overload 'Numerics.Vector256Count<ushort>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\Webp\ColorConverters\WebpColorConverter.Decoding.cs(754,36): error CS1929: 'Span<byte>' does not contain a definition for 'Vector128Count' and the best extension method overload 'Numerics.Vector128Count<ushort>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\Gif\GifDecoderCore.cs(734,15): error CS0411: The type arguments for method 'Color.FromPixel<TPixel>(ReadOnlySpan<TPixel>, Span<Color>)' cannot be inferred from the usage. Try specifying the type arguments explicitly.
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\Gif\GifDecoderCore.cs(1141,23): error CS0411: The type arguments for method 'Color.FromPixel<TPixel>(ReadOnlySpan<TPixel>, Span<Color>)' cannot be inferred from the usage. Try specifying the type arguments explicitly.
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\Jpeg\Components\ColorConverters\JpegColorConverter.Icc.cs(44,37): error CS1929: 'Span<float>' does not contain a definition for 'Vector512Count' and the best extension method overload 'Numerics.Vector512Count<float>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\Jpeg\Components\ColorConverters\JpegColorConverter.Icc.cs(75,37): error CS1929: 'Span<float>' does not contain a definition for 'Vector256Count' and the best extension method overload 'Numerics.Vector256Count<float>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\Jpeg\Components\ColorConverters\JpegColorConverter.Icc.cs(106,37): error CS1929: 'Span<float>' does not contain a definition for 'Vector128Count' and the best extension method overload 'Numerics.Vector128Count<float>(ReadOnlySpan<byte>)' requires a receiver of type 'System.ReadOnlySpan<byte>'
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\Tiff\Readers\PaletteTiffColor{TPixel}.cs(141,15): error CS0411: The type arguments for method 'Color.ToPixel<TPixel>(ReadOnlySpan<Color>, Span<TPixel>)' cannot be inferred from the usage. Try specifying the type arguments explicitly.
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\Heif\Av1\Prediction\ChromaFromLuma\Av1ChromaFromLumaContext.cs(177,13): error CS0411: The type arguments for method 'Av1ChromaFromLumaContext.StoreSamples<TSample>(ReadOnlySpan<TSample>, int, int, int, int, Span<short>, bool, bool)' cannot be inferred from the usage. Try specifying the type arguments explicitly.
C:\Users\User\source\repos\ImageSharp\src\ImageSharp\Formats\Heif\Av1\Prediction\ChromaFromLuma\Av1ChromaFromLumaContext.cs(189,13): error CS0411: The type arguments for method 'Av1ChromaFromLumaContext.StoreSamples<TSample>(ReadOnlySpan<TSample>, int, int, int, int, Span<short>, bool, bool)' cannot be inferred from the usage. Try specifying the type arguments explicitly.

[itzmitto]

Hallo @winscripter,

Yep, dotnet build is the documented command. Those particular errors make the compiler/language version worth checking first 😀

Current main targets .NET 10, and its shared build settings use C# 14. The Span-to-ReadOnlySpan conversions involved in your errors gained support in C# 14, so an older compiler or language configuration could explain this.

From the repository root, check:

git submodule update --init --recursive
dotnet --version
dotnet msbuild src/ImageSharp/ImageSharp.csproj -getProperty:LangVersion

For current main, the selected SDK should be 10 or newer, and LangVersion should be 14.0.

Then build from the root:

dotnet build -c Release

The build instructions are here:
https://github.com/SixLabors/ImageSharp/blob/main/.github/CONTRIBUTING.md#building

If those checks already match, could you share your commit SHA, SDK version and Visual Studio version? That would help narrow down whether this is a toolchain issue or something specific to your checkout.

Hope this helps!

[winscripter]

Thanks! I overlooked the readme. After updating submodules the library builds without errors.

[itzmitto]

no problem glad it was usefull haha