when call MXMetricManager.finishExtendedLaunchMeasurement , i get a error:
how to solve it please?
This seems to be tightly bound to MetricKit itself, rather than the Swift language, and so I recommend that you start a thread over on Apple Developer Forums. Please tag it with MetricKit so that I see it.
Also, it’d be helpful if you include the message as text rather than a screen shot. For this and other hints, see my Quinn’s Top Ten DevForums Tips post.
Share and Enjoy
Quinn “The Eskimo!” @ DTS @ Apple
thanks a lot