Trying to create a geometry shader - running into syntax errors:

So I have been following this tutorial to an immaculate degree.

And for the life of me, I can not get around these syntax errors. Here is my code:

Code (CSharp):

1. // Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
2.  
3. // Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
4.  
5. // Upgrade NOTE: replaced '_World2Object' with 'unity_WorldToObject'
6.  
7. Shader "Planet/LowPolyGrass" {
8.     Properties {
9.         _Color ("Color", Color) = (1,1,1,1)
10.         _MainTex ("Albedo (RGB)", 2D) = "white" {}
11.         _Glossiness ("Smoothness", Range(0,1)) = 0.5
12.         _Metallic ("Metallic", Range(0,1)) = 0.0
13.     }
14.     SubShader {
15.         Tags { "RenderType"="Opaque" }
16.         LOD 200
17.  
18.         Pass{
19.  
20.         CGPROGRAM
21.         #include "UnityCG.cginc"
22.        
23.         #pragma vertex vert
24.         #pragma fragment frag
25.         #pragma geometry geom
26.  
27.         #pragma target 4.0
28.  
29.         sampler2D _MainTex;
30.  
31.         struct v2g
32.         {
33.         float4 pos : SV_POSITION;
34.         float3 norm : NORMAL;
35.         float2 uv : TEXCOORD0;
36.         };
37.  
38.         struct g2f
39.         {
40.         float4 pos : SV_POSITION;
41.         float3 norm : NORMAL;
42.         //float2 uv : TEXCOORD0;
43.         //float3 diffuseColor : TEXCOORD1;
44.         //float3 specularColor : TEXCOORD2;
45.         };
46.        
47.  
48.         half _Glossiness;
49.         half _Metallic;
50.         fixed4 _Color;
51.  
52.         v2g vert(appdata_full v)
53.         {
54.         float3 v0 = v.vertex.xyz;
55.        
56.         v2g OUT;
57.         OUT.pos = v.vertex;
58.         OUT.norm = v.normal;
59.         OUT.uv = v.texcoord;
60.         return OUT;
61.         }
62.  
63.  
64.         [maxvertexcount(3)]
65.         void geom(triangle v2g IN[3], inout TriangleStream<g2f> triStream)
66.         {
67.             float3 v0 = IN[0].pos.xyz;
68.             float3 v1 = IN[1].pos.xyz;
69.             float3 v2 = IN[2].pos.xyz;
70.  
71.         float3 normal = normalize(cross(v1 - v0, v1 - v2))
72.  
73.         g2f OUT;
74.  
75.         OUT.pos = UnityObjectToClipPos(IN[0].pos);
76.         OUT.norm = normal;
77.         //OUT.uv = IN[0].uv;
78.         //OUT.diffuseColor = ambientLighting + diffuseReflection;
79.         //OUT.specularColor = specularReflection;
80.         triStream.Append(OUT);
81.         OUT.pos = UnityObjectToClipPos(IN[1].pos);
82.         OUT.norm = normal;
83.         //OUT.uv = IN[1].uv;
84.         //OUT.diffuseColor = ambientLighting + diffuseReflection;
85.         //OUT.specularColor = specularReflection;
86.         triStream.Append(OUT);
87.         OUT.pos = UnityObjectToClipPos(IN[2].pos);
88.         OUT.norm = normal;
89.         //OUT.uv = IN[2].uv;
90.         //OUT.diffuseColor = ambientLighting + diffuseReflection;
91.         //OUT.specularColor = specularReflection;
92.         triStream.Append(OUT);
93.         }
94.  
95.  
96.         half4 frag(g2f IN) : COLOR
97.         {
98.         return float4(1.0, 1.0, 1.0, 1.0);    }
99.        
100.         ENDCG
101.     }
102.     }
103. }

The syntax errors I am getting are these:

Shader error in 'Planet/LowPolyGrass': syntax error: unexpected token 'g2f' at line 74 (on d3d11)

Shader error in 'Planet/LowPolyGrass': undeclared identifier 'OUT' at line 76 (on d3d11)

Can someone please tell me what I am doing wrong?

I have declared Out at line 76?

And I have declared g2f.