Question No script asset for GrayScale.

Im trying to implement my own custom post-processing volumes in Unity for a university Project, but I cant seem to get it to work properly.
I created the scripts as Documented by Unity on this site : https://docs.unity3d.com/Packages/c...finition@17.0/manual/Custom-Post-Process.html

Then created a global volume with the custom override. All of the settings appear but the moment I fiddle with the available settings in the volume it throws this error code : "No script asset for GrayScale. Check that the definition is in a file of the same name and that it compiles properly."

My scripts are the same as in the documentation but i changed the shaders name thinking he had problems finding the shader since both the C# script and the shader shared the same name.
Just in case im going to add the code down here :

Script:

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.Rendering;
3. using UnityEngine.Rendering.HighDefinition;
4. using System;
5.  
6. [Serializable, VolumeComponentMenu("Post-processing/Custom/GrayScale")]
7. public sealed class GrayScale : CustomPostProcessVolumeComponent, IPostProcessComponent
8. {
9.     [Tooltip("Controls the intensity of the effect.")]
10.     public ClampedFloatParameter intensity = new ClampedFloatParameter(0f, 0f, 1f);
11.     Material m_Material;
12.  
13.     public bool IsActive() => true; //m_Material != null && intensity.value > 0f;
14.  
15.     public override CustomPostProcessInjectionPoint injectionPoint => CustomPostProcessInjectionPoint.AfterPostProcess;
16.  
17.     public override void Setup()
18.     {
19.         Debug.Log("Shader Found" + Shader.Find("Shader/GrayscaleShader"));
20.         if (Shader.Find("Shader/GrayScaleShader") != null)
21.             m_Material = new Material(Shader.Find("Shader/GrayScaleShader"));
22.     }
23.  
24.     public override void Render(CommandBuffer cmd, HDCamera camera, RTHandle source, RTHandle destination)
25.     {
26.         if (m_Material == null)
27.             return;
28.  
29.         m_Material.SetFloat("_Intensity", intensity.value);
30.         cmd.Blit(source, destination, m_Material, 0);
31.     }
32.  
33.     public override void Cleanup() => CoreUtils.Destroy(m_Material);
34.  
35. }

Shader:

Code (CSharp):

1. Shader "Shader/GrayScaleShader"
2. {
3.     Properties
4.     {
5.         // This property is necessary to make the CommandBuffer.Blit bind the source texture to _MainTex
6.         _MainTex("Main Texture", 2DArray) = "grey" {}
7.     }
8.  
9.     HLSLINCLUDE
10.  
11.     #pragma target 4.5
12.     #pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
13.  
14.     #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl"
15.     #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl"
16.     #include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariables.hlsl"
17.     #include "Packages/com.unity.render-pipelines.high-definition/Runtime/PostProcessing/Shaders/FXAA.hlsl"
18.     #include "Packages/com.unity.render-pipelines.high-definition/Runtime/PostProcessing/Shaders/RTUpscale.hlsl"
19.  
20.     struct Attributes
21.     {
22.         uint vertexID : SV_VertexID;
23.         UNITY_VERTEX_INPUT_INSTANCE_ID
24.     };
25.  
26.     struct Varyings
27.     {
28.         float4 positionCS : SV_POSITION;
29.         float2 texcoord   : TEXCOORD0;
30.         UNITY_VERTEX_OUTPUT_STEREO
31.  
32.     };
33.  
34.     Varyings Vert(Attributes input)
35.     {
36.         Varyings output;
37.  
38.         UNITY_SETUP_INSTANCE_ID(input);
39.         UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(output);
40.  
41.         output.positionCS = GetFullScreenTriangleVertexPosition(input.vertexID);
42.         output.texcoord = GetFullScreenTriangleTexCoord(input.vertexID);
43.  
44.         return output;
45.     }
46.  
47.     // List of properties to control your post process effect
48.     float _Intensity;
49.     TEXTURE2D_X(_MainTex);
50.  
51.     float4 CustomPostProcess(Varyings input) : SV_Target
52.     {
53.         UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
54.  
55.         float3 sourceColor = SAMPLE_TEXTURE2D_X(_MainTex, s_linear_clamp_sampler, input.texcoord).xyz;
56.  
57.         // Apply greyscale effect
58.         //float3 color = lerp(sourceColor, Luminance(sourceColor), _Intensity);
59.         float3 color = 1 - sourceColor;
60.  
61.         return float4(color, 1);
62.     }
63.  
64.     ENDHLSL
65.  
66.     SubShader
67.     {
68.         Pass
69.         {
70.             Name "GrayScale"
71.  
72.             ZWrite Off
73.             ZTest Always
74.             Blend Off
75.             Cull Off
76.  
77.             HLSLPROGRAM
78.                 #pragma fragment CustomPostProcess
79.                 #pragma vertex Vert
80.             ENDHLSL
81.         }
82.     }
83.  
84.     Fallback Off
85. }

Thank you in advance.