as the title:

it seems it not work.

<languageVersion : 1.0;>
material kernel phong
<
    namespace : "AIF Test";
    vendor : "Adobe";
    version : 1;
>
{
    parameter float3 uNMatrixPart_A;
    parameter float3 uNMatrixPart_B;
    parameter float3 uNMatrixPart_C;
    parameter float3 uAmbientColor;   
    parameter bool uUseLighting;
    parameter float3 uLightingDirection;   
    parameter float3 uDirectionalColor;   
    input vertex float3 aVertexNormal;
   
    input image4 inputImage;
    input vertex float4 vertexUV
    <
        id: "PB3D_TEXTURE_COORDS";
    >;

    // Interpolated.
    interpolated float4 interpolatedUV;
    interpolated float4 vLightWeighting;

    // Output.
    output float4 result;
   
    void evaluateVertex()
    {
        interpolatedUV = vertexUV;
        if(uUseLighting){
            float3x3 uNMatrix=float3x3(uNMatrixPart_A,uNMatrixPart_B,uNMatrixPart_C);
            float3 transformedNormal = aVertexNormal*uNMatrix;
           
            float directionalLightWeighting=max(dot(transformedNormal,uLightingDirectio n),0.0);
            float3 tmpWeigth=uAmbientColor + uDirectionalColor*directionalLightWeighting;
            vLightWeighting=float4(tmpWeigth.r,tmpWeigth.g,tmpWeigth.b,1.0);
        }else{
            vLightWeighting=float4(1.0,1.0,1.0,1.0);
        }
    }

    void evaluateFragment()
    {
        float4 textureColor = sample(inputImage, float2(interpolatedUV.x, interpolatedUV.y));
        float4 tmpColor=textureColor*vLightWeighting;
        result=float4(tmpColor.r,tmpColor.g,tmpColor.b,textureColor.a);
    }
}

The error is : "TypeError: Error #1034: 强制转换类型失败:无法将 com.adobe.pixelBender3D.asm::IfBlock@2273b01 转换为 com.adobe.pixelBender3D.asm.BasicBlock。"

and i need a solution to this.