GLSL link error: L0010 Uniform '_...' differ on precision

We are doing 3d game mobile game, and recently started to receive strange errors from Android devices. It does not always happen, and we cant reproduce it on devices we have at hand. (They are MYA-U29 and GT-I9300)
Unity version is 2018.3.6f1

Searching on internets provided very sparse information (namely only this stackoverflow question)
Variable names listed in error are not used in our shaders, and are only found in Unity library, so we cant rename them.

Did anyone encounter this problem? Can you give some directions?

Spoiler: error1.log

-------- GLSL link error: L0010 Uniform '_ProjectionParams' differ on precision #0 0x9cc80b64 (libunity.so) ? 0x470b64 #1 0x9c8e884c (libunity.so) ? 0xd884c #2 0x9ced9a80 (libunity.so) ? 0x6c9a80 #3 0x9cec1fd4 (libunity.so) ? 0x6b1fd4 #4 0x9cec04e4 (libunity.so) ? 0x6b04e4 #5 0x9cebf530 (libunity.so) ? 0x6af530 #6 0x9c96f570 (libunity.so) ? 0x15f570 #7 0x9cb3dab8 (libunity.so) ? 0x32dab8 #8 0x9cb56880 (libunity.so) ? 0x346880 #9 0x9cb56130 (libunity.so) ? 0x346130 #10 0x9cb55ce0 (libunity.so) ? 0x345ce0 #11 0x9cb55a20 (libunity.so) ? 0x345a20 #12 0x9cb57d98 (libunity.so) ? 0x347d98 #13 0x9c8c865c (libunity.so) ? 0xb865c #14 0x9c8c8940 (libunity.so) ? 0xb8940 #15 0x9cabcc9c (libunity.so) ? 0x2acc9c #16 0x9cabef5c (libunity.so) ? 0x2aef5c #17 0x9cabf898 (libunity.so) ? 0x2af898 #18 0x9cabfc84 (libunity.so) ? 0x2afc84 #19 0x9c8c9068 (libunity.so) ? 0xb9068 #20 0x9c9d05d0 (libunity.so) ? 0x1c05d0 #21 0x9cd024c8 (libunity.so) ? 0x4f24c8 #22 0x9cfa2a4c (libunity.so) ? 0x792a4c #23 0x9cfa4c48 (libunity.so) ? 0x794c48 #24 0x9ccfff10 (libunity.so) ? 0x4eff10 #25 0x9ccfcc30 (libunity.so) ? 0x4ecc30 #26 0x9ccff988 (libunity.so) ? 0x4ef988 #27 0x9ccfdff4 (libunity.so) ? 0x4edff4 #28 0x9ccffbec (libunity.so) ? 0x4efbec #29 0x9cba5e60 (libunity.so) ? 0x395e60 #30 0x9cb7e10c (libunity.so) ? 0x36e10c #31 0x9cb7e144 (libunity.so) ? 0x36e144 #32 0x9cb7e318 (libunity.so) ? 0x36e318 #33 0x9ca9bd44 (libunity.so) ? 0x28bd44 #34 0x9ca96024 (libunity.so) ? 0x286024

Spoiler: error2.log

-------- GLSL link error: L0010 Uniform '_WorldSpaceLightPos0' differ on precision #0 0x9cc80b64 (libunity.so) ? 0x470b64 #1 0x9c8e884c (libunity.so) ? 0xd884c #2 0x9ced9a80 (libunity.so) ? 0x6c9a80 #3 0x9cec1fd4 (libunity.so) ? 0x6b1fd4 #4 0x9cec04e4 (libunity.so) ? 0x6b04e4 #5 0x9cebf530 (libunity.so) ? 0x6af530 #6 0x9c96f570 (libunity.so) ? 0x15f570 #7 0x9cb3dab8 (libunity.so) ? 0x32dab8 #8 0x9cb3ec04 (libunity.so) ? 0x32ec04 #9 0x9cb3efa4 (libunity.so) ? 0x32efa4 #10 0x9cb469a4 (libunity.so) ? 0x3369a4 #11 0x9cb44bc4 (libunity.so) ? 0x334bc4 #12 0x9cb44b10 (libunity.so) ? 0x334b10 #13 0x9cb5556c (libunity.so) ? 0x34556c #14 0x9cb49adc (libunity.so) ? 0x339adc #15 0x9ca41eb0 (libunity.so) ? 0x231eb0 #16 0x9cc781a8 (libunity.so) ? 0x4681a8 #17 0x9cc69428 (libunity.so) ? 0x459428 #18 0x9cc696e0 (libunity.so) ? 0x4596e0 #19 0x9cb7e10c (libunity.so) ? 0x36e10c #20 0x9cb7e144 (libunity.so) ? 0x36e144 #21 0x9cb7e318 (libunity.so) ? 0x36e318 #22 0x9ca9bd44 (libunity.so) ? 0x28bd44 #23 0x9ca96024 (libunity.so) ? 0x286024

 

We are using unity 2018.3.6f1

 

Did you find the solution? I am getting the same error while building a Ar app

 

i am also meet this problem

 

I got this error on red mi
D OpenSSLLib: OpensslErr:Module:13(114:155); file:external/openssl/crypto/asn1/asn1_lib.c Line:142;Function:ASN1_get_object
D dalvikvm: threadid=39: interp stack at 0x63a71000
E Unity : -------- GLSL link error: L0010 Uniform '_ProjectionParams' differ on precision

 

i am also meet this problem

 

i cant reproduce it on devices i have at hand,and it happend on my release game on google play.This bug is mostly(>80%) occurred on android devices api level below 23(android 6.0).The stack like :
# main(1)
UnityLogError
-------- GLSL link error: L0010 Uniform 'hlslcc_mtx4x4unity_WorldToLight' differ on precision
UnityEngine.Application.CallLogCallback(String, String, LogType, Boolean).

I can only find variable 'WorldToLight' from unity built in shaders instead of my shader code and I can't find any variable named 'hlslcc_mtx4x4unity_WorldToLight'

devices meet this problem,not all

 

my unity version was 2018.4.1f1.
now I use unity 2018.4.5f1.Then the link error from variable 'hlslcc_mtx4x4unity_WorldToLight' changes to '_ClipArgs1'.
still no idea , help plz.

 

We are experiencing this as well

 

Hello, I also have the similar bug: Console on my Android mobile is saying: "glsl link error uniform _glossiness differ on precision". This error pops up when game starts but only sometimes. I also have this error on Particle System explosion where dealing with a big Atlas image 4096x4094 in real but in Unity inspector is set Max Size to 2048x2048.
Only happening on phone using OpenGL ES 2.0.
Unity version: 2019.2.14

Where do I fing a Bug report??

 

Sorry, the error gone away by now and I am not able to reproduce it anymore.

 

Case 1258280. Occurs on devices with Mali-400 GPU
Shader causing error:

Code (CSharp):

1. Shader "Test/TestShader"
2. {
3.     Properties
4.     {
5.         _MainTex ("Background", 2D) = "black" {}
6.         _TestFloat ("Test Float", float) = 0
7.     }
8.     SubShader
9.     {
10.         Tags { "RenderType"="Opaque" }
11.         LOD 100
12.  
13.         Pass
14.         {
15.             CGPROGRAM
16.             #pragma target 2.0
17.             #pragma vertex vert
18.             #pragma fragment frag
19.  
20.             #include "UnityCG.cginc"
21.  
22.             struct appdata
23.             {
24.                 float4 vertex : POSITION;
25.                 half2 uv : TEXCOORD0;
26.             };
27.  
28.             struct v2f
29.             {
30.                 half2 uv : TEXCOORD0;
31.                 float4 vertex : SV_POSITION;
32.             };
33.  
34.             sampler2D _MainTex;
35.             float4 _MainTex_ST;
36.  
37.             float _TestFloat;
38.  
39.             v2f vert (appdata v)
40.             {
41.                 v2f o;
42.                 o.vertex = UnityObjectToClipPos(v.vertex);
43.                 o.uv = TRANSFORM_TEX(v.uv, _MainTex) + frac(float2(_TestFloat, _TestFloat) * _Time);
44.                 return o;
45.             }
46.  
47.             fixed4 frag (v2f i) : SV_Target
48.             {
49.                 fixed4 col = tex2D(_MainTex, i.uv + float2(_TestFloat, _TestFloat));
50.                 return col;
51.             }
52.             ENDCG
53.         }
54.     }
55. }

Corrected Shader without error:

Code (CSharp):

1. Shader "Test/FixedShader"
2. {
3.     Properties
4.     {
5.         _MainTex ("Background", 2D) = "black" {}
6.         _TestFloat ("Test Float", float) = 0
7.     }
8.     SubShader
9.     {
10.         Tags { "RenderType"="Opaque" }
11.         LOD 100
12.  
13.         Pass
14.         {
15.             CGPROGRAM
16.             #pragma target 2.0
17.             #pragma vertex vert
18.             #pragma fragment frag
19.  
20.             #include "UnityCG.cginc"
21.  
22.             struct appdata
23.             {
24.                 float4 vertex : POSITION;
25.                 half2 uv : TEXCOORD0;
26.             };
27.  
28.             struct v2f
29.             {
30.                 half2 uv : TEXCOORD0;
31.                 float4 vertex : SV_POSITION;
32.             };
33.  
34.             sampler2D _MainTex;
35.             float4 _MainTex_ST;
36.  
37.             float _TestFloat;
38.  
39.             v2f vert (appdata v)
40.             {
41.                 v2f o;
42.                 o.vertex = UnityObjectToClipPos(v.vertex);
43.                 float2 test = float2(_TestFloat, _TestFloat); // fix "GLSL link error: L0010 Uniform '_TestFloat' differ on precision"
44.                 o.uv = TRANSFORM_TEX(v.uv, _MainTex) + frac(test * _Time);
45.                 return o;
46.             }
47.  
48.             fixed4 frag (v2f i) : SV_Target
49.             {
50.                 fixed4 col = tex2D(_MainTex, i.uv + float2(_TestFloat, _TestFloat));
51.                 return col;
52.             }
53.             ENDCG
54.         }
55.     }
56. }

Shader doesn't make sense, just to demonstrate an error. I don't think it's anything that should or could fix UT. Just to demonstrate a possible bug fix, since this is the first Google link on the appropriate request.
There was also a error: "-------- GLSL link error: L0010 Uniform '_WorldSpaceLightPos0' differ on precision" before I cleared the project from the unused shaders and the scene from the Lighting.
Support response: