I've made no changes to my code. XCode updated, now I'm seeing the following error Inside both VSCode and Android Studio Unable to locate DeviceSupport directory with suffix 'DeveloperDiskImage.dmg'. This probably means you don't have Xcode installed, you will need to launch the app manually and logging output will not be shown! Could not run build/ios/iphoneos/Runner.app on 16e0be0d98a45594d66fce5bc03767078a0adaf9. Try launching Xcode and selecting "Product > Run" to fix the problem: open ios/Runner.xcworkspace The app will run in XCode as suggested, however, that does not fix the problem in other IDE's. This must be an XCode issue. I also have XCode 12 Beta installed, which is giving the following error: Missing required components. Reinstall the Xcode Tools. I'm sure the above two errors are related and this is a problem with XCode. This all happened after updating XCode, IOS and Mac Big Sur to 11 Beta 4. This is also done using flutter, however, I don't know if the issue is confined to that.