I am attempting to get a mobile app to run using expo and whenever I run the simulator I get the following error.

One of the recommended solutions is to set the URL correctly in AppDelegate, and I have already tried to find this file and look at solutions on the web but I cannot even find the AppDelegate.m file to do this.

Do you know where it is and how I could update the file to fix my code?

Thank you!

Could not connect to development server.

Ensure the following:
- Node server is running and available on the same network - run 'npm start' from react-native root
- Node server URL is correctly set in AppDelegate
- WiFi is enabled and connected to the same network as the Node Server

URL: http://192.168.1.90:19000/node_modules/expo/AppEntry.bundle?platform=ios&dev=true&hot=false&strict=false&minify=false

ABI44_0_0RCTFatal
__37-[ABI44_0_0RCTCxxBridge handleError:]_block_invoke
_dispatch_call_block_and_release
_dispatch_client_callout
_dispatch_main_queue_callback_4CF
__CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
__CFRunLoopRun
CFRunLoopRunSpecific
GSEventRunModal
-[UIApplication _run]
UIApplicationMain
main
start_sim
0x0