Resolved Shader error in 'Unlit/MyShader': redefinition of 'VertexOutput' at line 43 (on d3d11)

Hi all, I am totally new to Unity, URP and shaders and have basic knowledge in programming.

For a school project i would need to implement compute, vertex, fragment and surface shader in URP.

As a good practice I have done now the following tutorial:

.
But unfortunately I am not able to assign the newly written shader to my Material as its not available there due to the following error: "Shader error in 'Unlit/MyShader': redefinition of 'VertexOutput' at line 43 (on d3d11)"

Can anyone help me and suggest how to fix or what I did wrong?

This is the shader code (using Unity 2021.3 with URP):

Shader "Unlit/MyShader"
{
Properties
{
_MainTex ("Texture", 2D) = "white" {}
}
SubShader
{
Tags { "RenderType"="Opaque" }
LOD 100

HLSLINCLUDE
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"

CBUFFER_START(UnityPerMaterial)
float4 _BaseColor;

CBUFFER_END

TEXTURE2D(_MainTex);
SAMPLER(sampler_MainTex);

struct VertexInput
{
float4 position : POSITION;
float2 uv : TEXCOORD0;
};

struct VertexOutput
{
float4 position : SV_POSITION;
float2 uv : TEXCOORD0;
}

ENDHLSL

Pass
{
HLSLPROGRAM
#pragma vertex vert
#pragma fragment frag

VertexOutput vert(VertexInput i)
{
VertexOutput o;
o.position = TransformObjectToHClip(i.position.xyz);
o.uv = i.uv;

return o;
}

float4 frag(VertexOutput i) : SV_Target
{
float4 baseTex = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, i.uv);

return baseTex * _BaseColor;
}

ENDHLSL


}
}
}

 

i have resolved it now.

 

How did you resolve this?

 

I'm pretty sure it's in the ten commandments or smth to not comment "I fixed it!" with no details.

The easiest solution without actually knowing anything about shaders is to just rename the instances of the redefinition error variable throughout the script.

 

Thanks a lot!It did help

 

Man Thanks alot you are a life saver! I made a game but for a certain reason i upgraded from unity version 2022.3.17f to 2022.3.22f1 and after opening the project the shader asset got corrupted somehow, reimporting didnt help at all. Then I did what you just said and voila magically all errors went away and its working perfectly. Thanks alot!