You need Mental Ray for Maya installed! For some reason this is not listed on Pixologics website. A co-worker figured this out and it hasn't been a problem since. http://www.nvidia.com/object/nvidia-mental-ray-products.html From Pixologic. No idea why they wrote this. We have all been using GoZ fine with 2017 after…
After you install goz from zbrush close it. copy GoZBrushFromMaya.mel to C:\Program Files\Autodesk\Maya2018\plug-ins From C:\Users\Public\Pixologic\GoZApps\Maya also Copy userSetup.mel to C:\Users\username\Documents\maya\2018\scripts from C:\Users\Public\Pixologic\GoZApps\Maya https://www.artstation.com/cordova5252