Been at it the whole day and I still can't figure it out why it doesn't work on android but it's working in the editor. I've included the shader in ProjectSettings->Graphics

This is the error I'm getting: "Shader error in 'Sprites/Outline': '[' : syntax error syntax error at line 96 (on gles)".

Line 96 has this [unroll(16)] ->Max outline size is 16px

Here's my shader:

[CODE]

  Shader "Sprites/Outline"
 {
 Properties
 {
     [PerRendererData] _MainTex("Sprite Texture", 2D) = "white" {}
 _Color("Tint", Color) = (1,1,1,1)
     [MaterialToggle] PixelSnap("Pixel snap", Float) = 0

     // Add values to determine if outlining is enabled and outline color.
     [PerRendererData] _Outline("Outline", Float) = 0
     [PerRendererData] _OutlineColor("Outline Color", Color) = (1,1,1,1)
     [PerRendererData] _OutlineSize("Outline Size", int) = 1
 }

     SubShader
 {
     Tags
 {
     "Queue" = "Transparent"
     "IgnoreProjector" = "True"
     "RenderType" = "Transparent"
     "PreviewType" = "Plane"
     "CanUseSpriteAtlas" = "True"
 }

     Cull Off
     Lighting Off
     ZWrite Off
     Blend One OneMinusSrcAlpha

     Pass
 {
     CGPROGRAM
       #pragma vertex vert
       #pragma fragment frag
       #pragma multi_compile _ PIXELSNAP_ON
       #pragma shader_feature ETC1_EXTERNAL_ALPHA
       #include "UnityCG.cginc"

 struct appdata_t
 {
     float4 vertex   : POSITION;
     float4 color    : COLOR;
     float2 texcoord : TEXCOORD0;
 };

 struct v2f
 {
     float4 vertex   : SV_POSITION;
     fixed4 color : COLOR;
     float2 texcoord  : TEXCOORD0;
 };

 fixed4 _Color;
 float _Outline;
 fixed4 _OutlineColor;
 int _OutlineSize;

 v2f vert(appdata_t IN)
 {
     v2f OUT;
     OUT.vertex = mul(UNITY_MATRIX_MVP, IN.vertex);
     OUT.texcoord = IN.texcoord;
     OUT.color = IN.color * _Color;
       #ifdef PIXELSNAP_ON
     OUT.vertex = UnityPixelSnap(OUT.vertex);
       #endif

     return OUT;
 }

 sampler2D _MainTex;
 sampler2D _AlphaTex;
 float4 _MainTex_TexelSize;

 fixed4 SampleSpriteTexture(float2 uv)
 {
     fixed4 color = tex2D(_MainTex, uv);

       #if ETC1_EXTERNAL_ALPHA
     // get the color from an external texture (usecase: Alpha support for ETC1 on android)
     color.a = tex2D(_AlphaTex, uv).r;
       #endif //ETC1_EXTERNAL_ALPHA

     return color;
 }

 fixed4 frag(v2f IN) : SV_Target
 {
     fixed4 c = SampleSpriteTexture(IN.texcoord) * IN.color;

 // If outline is enabled and there is a pixel, try to draw an outline.
 if (_Outline > 0 && c.a != 0) {
     float totalAlpha = 1.0;

     [unroll(16)]  <-- Error here...
     for (int i = 1; i < _OutlineSize + 1; i++) {
         fixed4 pixelUp = tex2D(_MainTex, IN.texcoord + fixed2(0, i * _MainTex_TexelSize.y));
         fixed4 pixelDown = tex2D(_MainTex, IN.texcoord - fixed2(0,i *  _MainTex_TexelSize.y));
         fixed4 pixelRight = tex2D(_MainTex, IN.texcoord + fixed2(i * _MainTex_TexelSize.x, 0));
         fixed4 pixelLeft = tex2D(_MainTex, IN.texcoord - fixed2(i * _MainTex_TexelSize.x, 0));

         totalAlpha = totalAlpha * pixelUp.a * pixelDown.a * pixelRight.a * pixelLeft.a;
     }

     if (totalAlpha == 0) {
         c.rgba = fixed4(1, 1, 1, 1) * _OutlineColor;
     }
 }

 c.rgb *= c.a;

 return c;
 }
     ENDCG
 }
 }
 }

  

Can someone please take a look at this and help me figure it out what's wrong? Thanks.