Recently I was at a client that was experiencing an odd issue: they couldn’t activate the SharePoint Server Publishing Infrastructure site collection feature. In this post I’ll walkthrough some of the processes that we went through to diagnose the error. For those wanting the short version it turns out the web application policy for “Create Subsites” had been disabled. You can jump to the Solution section jump to the solution section below. Diagnose To start we checked the ULS logs to see what showed ......