iOS10.0.1 Cannot be normally debugged in Xcode12

When I build and run my app in my iPhone6s whose iOS version is 10.0.1 by Xcode12, breakpoints was not working in Xcode. What's more, When I clicked ”pause program execution“ button, the stack trace did not show the list of methods called, just like ”0 0x1866d5e64“ ”1 0x18660f8e2c“...

How did I do to look up the list of methods called?
iOS10.0.1 Cannot be normally debugged in Xcode12
 
 
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