I was wondering if anyone could tell me what Xcode is actually doing when it says: \"Processing Symbol Files\" after plugging in your device?
Add SDK version correspond to your iPhone iOS, eg: iOS 10.3
path:
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport
It's downloading. When it's finished, it's OK. As shown in the figure: