iOS app crashes, xcode says 'Lost connection to X's iPhone' when debugging iOS app crashes, xcode says 'Lost connection to X's iPhone' when debugging ios ios

iOS app crashes, xcode says 'Lost connection to X's iPhone' when debugging


Just chipping in for anyone else who is struggling on this one.

For me the solution was to restart my device.


I had this same issue when loading a bunch of very large images (5000px x 5000px) in UIImages. Luckily the images were not supposed to be anywhere near that big and I just needed to resize them.


This bug appears frequently since I switched on iOS 11 Beta. Sometimes restarting the device works, sometimes my computer...