React-native initializes the project and does not see the default interface

install the official website https://reactnative.cn/docs/g., and build the react-native development environment on mac. After startup, you don"t see
but see the interface of iphone 6 simulator

.

clipboard.png

What is the reason for

?

version of the environment I use:

xcode: 9.0
react-native-cli: 2.0.1
react-native: 0.44.3

Mar.07,2022

compilation and installation failed. You can take a look at your terminal error message.

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