问题
I am trying to profile my iOS app, but everytime i profile it, the instruments(time profiler to be specific) it shows the
error: unable to locate the device's timestamp
. I am unable to find the reason why this might be happening. Any pointers?
The xcode version is 9.2 and my iPAD is on ios version-12.0.1.
回答1:
The reason it's happening is that Xcode 9.2 does not support versions of iOS later than iOS 11.2, including iOS 12. You have two options: use Xcode 10 to profile on your iPad or profile your app on a device running iOS 11.
来源：https://stackoverflow.com/questions/53533187/error-unable-to-locate-the-devices-timestamp-on-the-device-while-profiling-an