Error to compile Rive 0.2.6 on UE 5.5.2 project

[giovanni-d]

I'm trying to integrate Rive into my Unreal Engine (UE) C++ project, but I'm running into a compilation error.

Setup:

• Rive is added as a git submodule in the Plugins/Rive directory.
• The submodule points to this repo at version 0.2.6.

Environment:

• Windows 10
• Unreal Engine 5.5.2
• Rive 0.2.6

Problem: When compiling the plugin, I get the following error:

------ Building 17 action(s) started ------
** For ProjectGEditor-Win64-Development **
[1/17] WriteMetadata UnrealEditor.version (ProjectGEditor) (UBA disabled)
[2/17] Compile [x64] Module.RiveStats.cpp
[3/17] Link [x64] UnrealEditor-RiveStats.lib
[4/17] Link [x64] UnrealEditor-RiveStats.dll
   Creating object E:\ProjectG\Plugins\Rive\Binaries\Win64\UnrealEditor-RiveStats.exp
[5/17] Compile [x64] Module.RiveShaders.cpp
[6/17] Link [x64] UnrealEditor-RiveShaders.lib
[7/17] Link [x64] UnrealEditor-RiveShaders.dll
   Creating object E:\ProjectG\Plugins\Rive\Binaries\Win64\UnrealEditor-RiveShaders.exp
[8/17] Compile [x64] Module.RiveRenderer.cpp
11>RenderContextRHIImpl.hpp(113): Error C2039 : 'LITE_RTTI_OVERRIDE': is not a member of 'rive'
11>buffer_ring.hpp(9): Reference C2039 : see declaration of 'rive'
11>RenderContextRHIImpl.hpp(113): Error C2504 : 'LITE_RTTI_OVERRIDE': base class undefined
11>RenderContextRHIImpl.hpp(113): Error C2143 : syntax error: missing ',' before '('
11>RenderContextRHIImpl.hpp(123): Error C3668 : 'RenderBufferRHIImpl::onMap': method with override specifier 'override' did not override any base class methods
11>RenderContextRHIImpl.hpp(124): Error C3668 : 'RenderBufferRHIImpl::onUnmap': method with override specifier 'override' did not override any base class methods
11>RenderContextRHIImpl.cpp(354): Error C2614 : 'RenderBufferRHIImpl': illegal member initialization: 'lite_rtti_override' is not a base or member
11>RenderContextRHIImpl.cpp(375): Error C3861 : 'flags': identifier not found
11>RenderContextRHIImpl.cpp(380): Error C3861 : 'sizeInBytes': identifier not found
11>RenderContextRHIImpl.cpp(636): Error C2039 : 'clipSpaceBottomUp': is not a member of 'rive::gpu::PlatformFeatures'
11>gpu.hpp(94): Reference C2039 : see declaration of 'rive::gpu::PlatformFeatures'
11>RenderContextRHIImpl.cpp(637): Error C2039 : 'framebufferBottomUp': is not a member of 'rive::gpu::PlatformFeatures'
11>gpu.hpp(94): Reference C2039 : see declaration of 'rive::gpu::PlatformFeatures'
11>RenderContextRHIImpl.cpp(1044): Error C2440 : 'return': cannot convert from 'rive::rcp<RenderBufferRHIImpl>' to 'rive::rcp<rive::RenderBuffer>'
11>RenderContextRHIImpl.cpp(1044): Reference C2440 : No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called
11>RenderContextRHIImpl.cpp(1207): Error C2039 : 'gradSpanCount': is not a member of 'rive::gpu::FlushDescriptor'
11>gpu.hpp(764): Reference C2039 : see declaration of 'rive::gpu::FlushDescriptor'
11>RenderContextRHIImpl.cpp(1220): Error C2039 : 'firstGradSpan': is not a member of 'rive::gpu::FlushDescriptor'
11>gpu.hpp(764): Reference C2039 : see declaration of 'rive::gpu::FlushDescriptor'
11>RenderContextRHIImpl.cpp(1230): Error C2039 : 'gradDataHeight': is not a member of 'rive::gpu::FlushDescriptor'
11>gpu.hpp(764): Reference C2039 : see declaration of 'rive::gpu::FlushDescriptor'
11>RenderContextRHIImpl.cpp(1232): Error C2039 : 'gradSpanCount': is not a member of 'rive::gpu::FlushDescriptor'
11>gpu.hpp(764): Reference C2039 : see declaration of 'rive::gpu::FlushDescriptor'
11>RenderContextRHIImpl.cpp(1221): Error C2660 : 'AddGradientPass': function does not take 6 arguments
11>RivePassFunctions.h(31): Reference C2660 : see declaration of 'AddGradientPass'
11>RenderContextRHIImpl.cpp(1221): Reference C2660 : while trying to match the argument list '(FRDGBuilder, TRDGUniformBuffer<TBufferStruct> *, FVertexDeclarationRHIRef, FRDGTextureRef, FBufferRHIRef, FUint32Rect)'
        with
        [
            TBufferStruct=FFlushUniforms
        ]
11>RenderContextRHIImpl.cpp(1311): Error C2039 : 'SwizzleRiveColorToRGBAPremul': is not a member of 'rive::gpu'
11>constants.glsl.hpp(6): Reference C2039 : see declaration of 'rive::gpu'
11>RenderContextRHIImpl.cpp(1311): Error C3861 : 'SwizzleRiveColorToRGBAPremul': identifier not found
11>RenderContextRHIImpl.cpp(1597): Error C2039 : 'sizeInBytes': is not a member of 'RenderBufferRHIImpl'
11>RenderContextRHIImpl.hpp(112): Reference C2039 : see declaration of 'RenderBufferRHIImpl'
11>RenderContextRHIImpl.cpp(1596): Error C2660 : 'AddDrawImageMeshPass': function does not take 3 arguments
11>RivePassFunctions.h(112): Reference C2660 : see declaration of 'AddDrawImageMeshPass'
11>RenderContextRHIImpl.cpp(1596): Reference C2660 : while trying to match the argument list '(FRDGBuilder, FRiveCommonPassParameters *, ParameterStructType *)'
        with
        [
            ParameterStructType=FRiveImageMeshPassParameters
        ]
11>RivePassFunctions.cpp(109): Error C2039 : 'GRAD_SPAN_TRI_STRIP_VERTEX_COUNT': is not a member of 'rive::gpu'
11>RiveRenderTargetD3D11.h(14): Reference C2039 : see declaration of 'rive::gpu'
11>RivePassFunctions.cpp(109): Error C2065 : 'GRAD_SPAN_TRI_STRIP_VERTEX_COUNT': undeclared identifier
11>RivePassFunctions.cpp(107): Error C2660 : 'FRHICommandList::DrawPrimitive': function does not take 2 arguments
11>RHICommandList.h(3587): Reference C2660 : see declaration of 'FRHICommandList::DrawPrimitive'
11>RivePassFunctions.cpp(107): Reference C2660 : while trying to match the argument list '(int, const uint32_t)'
11>RiveRenderCommand.cpp(18): Error C2660 : 'rive::computeAlignment': function does not take 5 arguments
11>renderer.hpp(28): Reference C2660 : see declaration of 'rive::computeAlignment'
11>RiveRenderCommand.cpp(18): Reference C2660 : while trying to match the argument list '(rive::Fit, rive::Alignment, rive::AABB, rive::AABB, const float)'
[9/17] Compile [x64] Module.RiveEditor.cpp
[10/17] Link [x64] UnrealEditor-RiveEditor.lib
[11/17] Compile [x64] Module.Rive.cpp
[12/17] Link [x64] UnrealEditor-Rive.lib
Trace file written to E:/UE_5.5.2/Engine/Programs/UnrealBuildTool/Log.uba with size 13.0kb
Total time in Unreal Build Accelerator local executor: 13.18 seconds
Total execution time: 25.69 seconds
11>Microsoft.MakeFile.Targets(44,5): Error MSB3073 : The command "E:\UE_5.5.2\Engine\Build\BatchFiles\Build.bat -Target="ProjectGEditor Win64 Development -Project=\"E:\ProjectG\ProjectG.uproject\"" -Target="ShaderCompileWorker Win64 Development -Project=\"E:\ProjectG\ProjectG.uproject\" -Quiet" -WaitMutex -FromMsBuild -architecture=x64" exited with code 6.

Any help would be greatly appreciated!

[Tod-Rive]

Can you please try the latest version and let me know how it goes?