Simulator is not working with upgrading xcode 10?
The simple way is to come back to the legacy build system, it seems to be a problem of the new build system.
Open XCode, then click on File -> Project Settings.
Into the Shared Project Settings choose Legacy build system to the build system.
MEMixerChannel.cpp:1577 Spatialization not supported on this platform (err=-4)
It is because you are developing for Apple Watch.
If you look at the "Spatialization Algorithms" on the developer site you will see that WatchOS is not included in the "Availability" for any of the cases.
https://developer.apple.com/documentation/audiounit/audio_unit_properties/spatialization_algorithms
More detailed ways of playing audio allow you to remove that option but regular AVPlayer doesn't seem to have anything.
https://developer.apple.com/documentation/arkit/usdz_schemas_for_ar/actions_and_triggers/audioaction/auralmode
Related Topics
Alternative to Usernotificationcenterdelegate's Willpresent When App Is in Background
How to Send Multiple Parameterts to PHP Server in Http Post
Fbsdkaccesstoken Currentaccesstoken Nil After Quitting App
Mkmapview Show Incorrectly Saved Region
How to Logout User Using Facebook Authentication Using Swift and iOS
Sending a Private Message to Your Friends via Facebook iOS Sdk
Uitextfield in Uialertcontroller (Border, Backgroundcolor)
Parse Multipart Response for Image Download in iOS
Dismissing Both Uinavigation Views and Modal Views at Once Programmatically
How to Force an App to Change Language in iOS/Objective-C
Button Action in Mkannotation View Not Working
How to Implement Login/Logout Navigation Using Userdefaults in Swift
Firebase Limit on the Number of Observers/Listeners
Convert Request Function to Generic Type
iOS - Swift - Function That Returns Asynchronously Retrieved Value
Change Uiimageview Size to Match Image with Autolayout