iOS App was building fine yesterday, but it won't build today

Question

Yesterday I pushed my first Flutter app to TestFlight in the App Store. While the app was running okay on my iPhone 5 and my iPhone Xr when I build directly to my device, when I run it through TestFlight, the Bluetooth never seems to see my devices nor connect to them. (I'm using the flutter_blue_plus module. Note that I am not building a watchOS app.)

Now, I am trying to figure out what is going on and I cannot build to my iPhone Xr. (I can build to my Android device.) Instead, I now get this message:

Launching lib/main.dart on Dan’s iPhone in debug mode... ProcessException: Process exited abnormally: Command line invocation: /Applications/Xcode.app/Contents/Developer/usr/bin/xcodebuild -list

User defaults from command line: IDEPackageSupportUseBuiltinSCM = YES

2022-05-10 15:01:55.696 xcodebuild[23296:39395199] Requested but did not find extension point with identifier Xcode.IDEKit.ExtensionSentinelHostApplications for extension Xcode.DebuggerFoundation.AppExtensionHosts.watchOS of plug-in com.apple.dt.IDEWatchSupportCore

2022-05-10 15:01:55.696 xcodebuild[23296:39395199] Requested but did not find extension point with identifier Xcode.IDEKit.ExtensionPointIdentifierToBundleIdentifier for extension Xcode.DebuggerFoundation.AppExtensionToBundleIdentifierMap.watchOS of plug-in com.apple.dt.IDEWatchSupportCore

xcodebuild: error: The directory /Users/danielshepard/FlutterProjects/towgo_app/ios contains 2 projects, including multiple projects with the current extension (.xcodeproj). Specify the project to use with the -project option.

Command: /usr/bin/arch -arm64e xcrun xcodebuild -list

screen shot of error

Can anyone help me figure out why this is not working today?

Answer 1

After many tries I solved in this way:

• Update MacOS
• Update Xcode and command lines tools
• Run flutter pub upgrade, flutter pub get in the project folder
• Delete podfile.lock in ios folder of the project
• Run cd ios, pod repo update, pod install in the project folder