The github .zip file vst3sdk-master does not seem to contain this file either. The steps listed at github
are the same steps we have been discussing.
What is this file SMTG_VST3_SDK and what download should it come with?
(edit)
I’m now guessing this has something to do with my version of xcode which is 12.1 and the required version listed is 12.2. I need to upgrade my OS to big sur before I can download xcode 12.2 so I will go and do that and report back later.