我正在创建我的第一个React-Native-App，但似乎Expo不能在模拟器上运行。
做完之后，我什么都没做
sudo npm run start
在我的本机应用程序中，它向我显示带有条形码和以下说明的屏幕
View your app with live reloading:
Android device:
-> Point the Expo app to the QR code above.
(You'll find the QR scanner on the Projects tab of the app.)
iOS device:
-> Press s to email/text the app URL to your phone.
Emulator:
-> Press a (Android) or i (iOS) to start an emulator.
Your phone will need to be on the same local network as this computer.
For links to install the Expo app, please visit https://expo.io.
Logs from serving your app will appear here. Press Ctrl+C at any time to stop.
› Press a to open Android device or emulator, or i to open iOS emulator.
› Press s to send the app URL to your phone number or email address
› Press q to display QR code.
› Press r to restart packager, or R to restart packager and clear cache.
› Press d to toggle development mode. (current mode: development)
如上述说明中所述
Emulator:
-> Press a (Android) or i (iOS) to start an emulator.
我按I关键字，它会打开模拟器，但不显示任何项目，有一个expo应用程序，但项目选项卡似乎为空。
该应用确实可以在我的物理iOS（iPhone SE）设备上正常运行。
有人可以帮我解决这个问题吗？