[Need Help of a expert shader user] How to make following shaders to Fallback to "Diffuse"?

How to make Unity`s default shaders file to Fallback to "Diffuse"? Question is simple. Whenever I build my game and when I run it then there is no mesh render no gameobject. As it show error that :

 WARNING: Shader Unsupported: 'Hidden/Internal-DeferredShading' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-DeferredShading' - Setting to default shader.
 WARNING: Shader Unsupported: 'Hidden/Internal-DeferredReflections' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-DeferredReflections' - Setting to default shader.
 WARNING: Shader Unsupported: 'Hidden/Internal-DepthNormalsTexture' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-DepthNormalsTexture' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-DepthNormalsTexture' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-DepthNormalsTexture' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-DepthNormalsTexture' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-DepthNormalsTexture' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-DepthNormalsTexture' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-DepthNormalsTexture' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-DepthNormalsTexture' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-DepthNormalsTexture' - Setting to default shader.
 WARNING: Shader Unsupported: 'Hidden/Internal-MotionVectors' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-MotionVectors' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-MotionVectors' - Setting to default shader.
 WARNING: Shader Unsupported: 'Legacy Shaders/Diffuse' - Pass 'PREPASS' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/CubeBlur' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/CubeCopy' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/CubeBlend' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/VideoDecode' - Pass 'YCBCR_TO_RGB1' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/VideoDecode' - Setting to default shader.
 WARNING: Shader Unsupported: 'Hidden/Internal-CombineDepthNormals' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/Internal-CombineDepthNormals' - Setting to default shader.
 WARNING: Shader Unsupported: 'Hidden/VR/BlitCopyFromTexArray' - Pass '' has no vertex shader
 WARNING: Shader Unsupported: 'Hidden/VR/BlitCopyFromTexArray' - Setting to default shader.

if u know how to solve them plz plz Help me! Any solution and comment is appreciated here!