Pragma target 3.0 not fixing "Too many interpolators"

Hi all,

I'm getting the error "Too many texture interpolators would be used for ForwardBase pass (11 out of max 10) at line 21". My understanding is that #pragma target 3.0 should fix this, am I wrong?

I'm using 2017.4.3f1
I can't really share code but here's the structure:

Code (CSharp):

1. Shader "Custom/New Shader" {
2.     Properties {
3.         _Color ("Color", Color) = (1,1,1,1)
4.         _MainTex ("Albedo (RGB)", 2D) = "white" {}
5.         //etc...
6.     }
7. SubShader {
8.         Tags { "RenderType"="Opaque" }
9.         LOD 200
10.         CGPROGRAM
11.  
12.         #pragma surface surf Standard fullforwardshadows
13.  
14.         #pragma target 3.0
15.  
16.         struct Input {
17.             float2 uv_MainTex;
18.             //etc...
19.         };
20.  
21.         float _Glossiness;
22.         //etc...  
23.  
24.         UNITY_INSTANCING_BUFFER_START(Props)
25.  
26.         UNITY_INSTANCING_BUFFER_END(Props)
27.  
28.             void vert(inout appdata_full v, out Input o)
29.         {
30.             //Stuff
31.         }
32.  
33.         void surf (Input IN, inout SurfaceOutputStandard o) {
34.             //Stuff
35.         }
36.  
37.         ENDCG
38.     }
39.     FallBack "Diffuse"
40. }

I guess that's impossible to debug, but my question really just is whether "#pragma target 3.0" should be fixing that error.

Thanks in advance!

 

Ah right, thanks very much!