Having the same issue - did you ever figure this out?

 Hi, apologies for the probably obvious question, but I'm getting compilation errors when using the reflection probe node in shadergraph (version 3.0.0 on HDRP).  


Here are the relevant parts of my graph as shown below:  


https://i.redd.it/nuq2gm12w4m11.png

As you can see, I supplied the necessary inputs (view direction, normals and LOD) and am outputting directly to emission in my master node. I have my reflection probe component attached to the child of the plane using this shader, set to real time (I doubt this matters, adding for comprehensiveness). Anyways, I'm getting these errors when I save my shadergraph:

![img](6aym79h4w4m11 "
Could someone tell me what I might be doing wrong? I looked at the documentation for the reflection probe node already at https://github.com/Unity-Technologies/ShaderGraph/wiki/Reflection-Probe-Node which is unfortunately a bit sparse. I barely know any GLSL (hence why I'm using shadergraph) but some googling tells me that unity_SpecCube0 is the skybox cube map and should be defined in UnityShaderVariables. 
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Sorry in advance for being stupid, would really appreciate some help. Thanks!

&amp;#x200B;

(Cross-post from the unity forums).  

Shadergraph Reflection Probe Node Compilation Errors, Would Greatly Appreciate Help!