I kept CoreLocation’s startUpdatingLocation running for a full day and used Performance trace - PowerProfiler to track the power usage during that time. The trace file was successfully generated on the iOS device, and I later transferred it to my MacBook.
However, when I tried to open the .atrc file, I received the following warning:
The document cannot be imported because of an error: File ‘/Users/jun/Downloads/PowerProfiler_25-06-16_181049_to_25-06-17_091037_001.atrc’ doesn’t contain any events.
Why is this happening? Is there a known issue with PowerProfiler in iOS 26, or am I missing something in the tracing setup?
Note: The .aar file and the extracted .atrc file are not attached here, as forum uploads do not support these formats.