EGSM object invalid, can't use shaders

[scottycool64]

I copy-pasted the sobeloperator example into lua/autorun/client/shadertest.lua
And running it, and using some prints to debug:

client channel:
EGSM Object as accessed from lua/autorun/client: nil

During startup, menu channel says:
EGSM BRANCH: x86-64
INCLUDED: egsm_chromium
-----EGSM Loading-----
ShaderLib

[MENU ERROR] ShaderLib: R_StudioSetupSkinAndLighting == NULL

1. unknown - [C]:-1
2. require - [C]:-1
   3. unknown - lua/menu/menu.lua:22
   4. include - [C]:-1
   5. unknown - lua/includes/menu.lua:9

I'm not sure exactly what I'm doing wrong here, but the global 'EGSM' object the shader file tries to access doesn't exist.