Build errors in a shader

Unity Engine
1

Hello, I need some help.

Someone send me a shader but when I build it, I’ve got some errors like :

Cg in program 'frag': error C5108: unknown semantics "SV_POSITION" specified for "pos" at line 66
Syntax error : ZWrite at line 121

I’ve checked the shader and it seems correct. Do you know what it doesn’t work ?

Edit: When I replace SV_POSITION by POSITION, it works. Is there a problem with the version of the shader ?

2

Which Unity version you use? SV_POSITION only works in Unity 3.x.

Right now there’s no practical difference between SV_POSITION and POSITION, but in the future there were well might be.

3

I’m using unity 4.3 and I see this problem as well.
[EDIT] scratch that. I get “unknown semantics POSITION” as well…something else must be up.