I followed the instructions in chapter 5. Controls twice step by step - using Xcode 8.2.1 supposedly Swift 3.0/3.1
Starting the build without any errors or warnings, being at figure 5.9, the compiled application starts, but no window shows up - even when I switch on in the inspector “Visible at launch”. What might went wrong? What do I need to double-check?
Thanks in advance…!