Blacksmith hair pink

I've tried to look at the blacksmith hair example, https://www.assetstore.unity3d.com/en/#!/content/39945, but it gives me an error after importing it and the hair is pink:


Shader error in 'Volund/Standard Hair': undeclared identifier 'samplerunity_SpecCube1' at Assets/Features/Hair/Hair_UnityStandardCore.cginc(379) (on d3d11)

Compiling Vertex program with DIRECTIONAL LIGHTMAP_OFF DYNAMICLIGHTMAP_OFF DBG_NONE
Platform defines: UNITY_ENABLE_REFLECTION_BUFFERS UNITY_PBS_USE_BRDF1 UNITY_SPECCUBE_BOX_PROJECTION UNITY_SPECCUBE_BLENDING

I've attached the shader file just in case. Any help will be greatly appreciated.
P/S. Forgot to mention: Unity 5.4.1f Windows 7

 

Copied from the Comments section:

I haven't tried it myself though.

 

Thanks, I tried that last night after the earthquake, but I was to tired to remember to update this post.
It does work.

 

Anyone coming accross this in Feb 2017 or later, I had this issue, and the code fix stated above is now in a different file, at least it was for me. I found it here:

File: Hair_setup.cginc
Line: 124

Code to change same as post above:
UNITY_PASS_TEXCUBE(unity_SpecCube1)
to:
UNITY_PASS_TEXCUBE_SAMPLER(unity_SpecCube1,unity_SpecCube0)