extension 'GL_EXT_frag_depth' is not supported in Xcode

-------- failed compiling:
fragment evaluation shader
WARNING: 0:4: extension ‘GL_EXT_frag_depth’ is not supported
ERROR: 0:38: Use of undeclared identifier ‘gl_FragDepthEXT’

Note: Creation of internal variant of shader ‘Hidden/Internal-MotionVectors’ failed.
WARNING: Shader Unsupported: ‘Hidden/Internal-MotionVectors’ - Pass ‘’ has no vertex shader
WARNING: Shader Unsupported: ‘Hidden/Internal-MotionVectors’ - Setting to default shader.

I am facing the same issue, did you fix it?

I am also facing the same error.

Open Unity → Edit → Project settings → Graphics

Then see Depth Normals under built-in shader setting and Choose option no Support

Hi,
I have been struggling with this shader-not-supported-issue on iOS .
Everything works perfectly on Android (different devices tested), but on iOS it is such a hassle to get things done.

-------- failed compiling:
fragment evaluation shader
WARNING: 0:4: extension ‘GL_EXT_frag_depth’ is not supported
ERROR: 0:38: Use of undeclared identifier ‘gl_FragDepthEXT’

Note: Creation of internal variant of shader ‘Hidden/Internal-MotionVectors’ failed.
WARNING: Shader Unsupported: ‘Hidden/Internal-MotionVectors’ - Pass ‘’ has no vertex shader
WARNING: Shader Unsupported: ‘Hidden/Internal-MotionVectors’ - Setting to default shader.
(lldb)

Plz Help Me…

my current project not a show depth normal shader option
show the screen shot
plz help me