bcallaha,
With a completely new machine, a 15" Touchbar MacBook Pro from late 2016, these are some of the issues i'm experiencing:
- Random errors when running on device (An unknown error occurred)
- Debugger breakpoints on the wrong places, printing out statements is SLOWER than recompiling the entire product
- Simply typing in the Xcode editor is slow. Each character comes with a few ms to a few 100 ms delay
- Autocompletion is effectively useless seeing how slow it is
- Xcode keeps recompiling not only the current target, but also its dependencies, even though no changes has been made
- Xcode crashes randomly, and inconsistently several times per day
- Scrolling through code is laggy, even on a low-resolution screen
- Animation of opening and closing panels never exceed 2-5 fps
- Xcode stating that devices are locked, when they in fact are not
I could go on forever about how the developer experience in Xcode has become so terrible, i sometimes feel like stop developing for iOS as it just keep going downhill. About filing a report on bugreport.apple.com – my radar about Simulator performance took months to even get a reply – i doubts that i will ever get a response on it.
Feeling quite pesimistic about the future of development on Apple platforms if you cannot even resolve issues regarding developer experience.
You're not even that responsive in the forums – sounds like the chain of communication up to the actual Xcode developers is broken.
I'm upset, especially since there are literally thousands of us who could help with the Xcode issues.