Xcode Instruments: "Request to launch ... Failed"

Developer Tools & Services Instruments
ViktorCode OP
Created Mar ’21
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Xcode 12.4 produces this error on iOS device 14.4.1 when I'm trying to run time profiling. I have never encountered this error before. However, I can run the app from Xcode on the device with no issues.

Tried

  • Reconnecting device

  • Restarting both Mac and iOS device.

What else can I do?

Replies  1
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ViktorCode OP
Mar ’21
Ok, the issue turned out to be that the iOS device lost internet connection and therefore couldn't verify the signature to run the app.
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Xcode Instruments: "Request to launch ... Failed"
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