How you can examine parts of my React Native app in IOS/Android digital emulator?

I’ve a react-native app that I can open in an Xcode IOS emulator with the terminal command yarn ios or in an Android Studio Android emulator with the terminal command react-native run-android. I understand how to attach my safari debugger to an internet site within the Safari app of a digital emulator, however how do I allow a debugger for my app within the digital emulators? On IOS, I discover if I do control-command-z it provides me the choices to click on Open Debugger/Open React Instruments however once I click on these I get an error and nothing occurs. Does anybody know learn how to examine parts of a React native app in a digital emulator?

Notes

1. IOS digital emulator is utilizing iPhone X (iOS 17.0)
2. Android digital emulator is utilizing Pixel_3a_API_34_extension_level_7_arm64-v8a
3. react-native is 0.71.4
4. OS is MacBook Professional, Apple M1 Max, 13.6.1