remove old meta data files.

MaterialGraphProject/Assets/GeneratedShader.shader

-Shader "Hidden/PreviewShader/Sin_5540BA00_result" {
-	Properties {
-
-	}	
-	
-	SubShader {
-		// inside SubShader
-		Tags
-		{
-			"Queue"="Geometry"
-			"RenderType"="Opaque"
-			"IgnoreProjector"="True"
-		}
-
-		// inside Pass
-		ZWrite On
-
-		Blend One Zero
-		
-		Pass {
-			CGPROGRAM
-			#pragma vertex vert
-			#pragma fragment frag
-			#include "UnityCG.cginc"
-
-
-
-
-			struct v2f 
-			{
-				float4 pos : SV_POSITION;
-				float4 color : COLOR;
-
-			};
-
-
-			void Unity_Sin_float(float argument, out float result)
-			{
-			    result = sin(argument);
-			}
-
-
-			v2f vert (appdata_full v) 
-			{
-				v2f o = (v2f)0;
-				o.pos = UnityObjectToClipPos(v.vertex);;
-				float3 worldPos = mul(unity_ObjectToWorld, v.vertex).xyz;
-				float3 viewDir = UnityWorldSpaceViewDir(worldPos);
-				float4 screenPos = ComputeScreenPos(UnityObjectToClipPos(v.vertex));
-				float3 worldNormal = UnityObjectToWorldNormal(v.normal);
-
-				return o;
-			}
-
-			half4 frag (v2f IN) : COLOR
-			{
-				float Sin_5540BA00_result;
-				Unity_Sin_float(_Time.y, Sin_5540BA00_result);
-				return half4(Sin_5540BA00_result, Sin_5540BA00_result, Sin_5540BA00_result, 1.0);
-
-			}
-			ENDCG
-		}
-	}
-	Fallback Off
-}

MaterialGraphProject/Assets/GeneratedShader.shader.meta

-fileFormatVersion: 2
-guid: 4afc3341bed83d34cb1aebb7e98d8751
-timeCreated: 1500713419
-licenseType: Pro
-ShaderImporter:
-  defaultTextures: []
-  nonModifiableTextures: []
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: