Trying out Time Profiler for the first time, per the chapter instructions. No matter what I did, I couldn’t get Time Profiler to launch Scattered (or with any other app for that matter nor would any other instrument work). A Google search didn’t help. Then I decided to edit the Scheme and change the option from Ask on Launch to Time Profiler directly. I ran profile again and voila, I’m able to collect data.
For fun, I changed the scheme back to Ask on Launch and this time it prompted me and then successfully collected data when I ran Scattered. I was able to use other instruments at this point as well.
This is the latest and greatest XCode, by the way. I smell a bug in XCode.