Forgot to save here is the correct version of the shader

com.unity.render-pipelines.universal/Samples~/RenderPassSamples/Shaders/KawaseBlur.shader

@@ -3,53 +3,52 @@ Shader "Custom/RenderFeature/KawaseBlur"
     Properties
     {
         _MainTex("Texture", 2D) = "white" {}
-    //   _offset ("Offset", float) = 0.5
     }
 
     SubShader
     {
-        Tags { "RenderType" = "Opaque" }
+        Tags { "RenderType" = "Opaque" "RenderPipeline" = "UniversalRenderPipeline" }
 
         Pass
         {
+            HLSLPROGRAM
             #pragma vertex vert
             #pragma fragment frag
 
-            #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl"
+            #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
 
-            struct appdata
+            struct Attributes
             {
                 float4 vertex : POSITION;
                 float2 uv : TEXCOORD0;
             };
 
-            struct v2f
+            struct Varyings
             {
                 float2 uv : TEXCOORD0;
                 float4 vertex : SV_POSITION;
             };
 
             sampler2D _MainTex;
-            // sampler2D _CameraOpaqueTexture;
             float4 _MainTex_TexelSize;
             float4 _MainTex_ST;
 
             float _offset;
 
-            v2f vert(appdata v)
+            Varyings vert(Attributes v)
             {
-                v2f o;
-                o.vertex = UnityObjectToClipPos(v.vertex);
+                Varyings o;
+                o.vertex = TransformObjectToHClip(v.vertex);
                 o.uv = TRANSFORM_TEX(v.uv, _MainTex);
                 return o;
             }
 
-            fixed4 frag(v2f input) : SV_Target
+            half4 frag(Varyings input) : SV_Target
             {
                 float2 res = _MainTex_TexelSize.xy;
                 float i = _offset;
 
-                fixed4 col;
+                half4 col;
                 col.rgb = tex2D(_MainTex, input.uv).rgb;
                 col.rgb += tex2D(_MainTex, input.uv + float2(i, i) * res).rgb;
                 col.rgb += tex2D(_MainTex, input.uv + float2(i, -i) * res).rgb;
@@ -59,7 +58,7 @@ Shader "Custom/RenderFeature/KawaseBlur"
 
                 return col;
             }
-            ENDCG
+            ENDHLSL
         }
     }
 }