Audio Recorder Example - mac crashes when run

1. on mac, load this project: https://doc.qt.io/qt-5/qtmultimedia-multimedia-audiorecorder-example.html
2. configure and run
3. <-- crash

2019-06-07 12:38:59.995156-0700 audiorecorder[17123:713708] [AudioHAL_Client] HALC_ShellObject.cpp:212:HasProperty: HALC_ShellObject::HasProperty: initial inner method call failed, Error: 560947818 (!obj)2019-06-07 12:38:59.996718-0700 audiorecorder[17123:713708] [AudioHAL_Client] HALC_ShellObject.cpp:212:HasProperty: HALC_ShellObject::HasProperty: initial inner method call failed, Error: 560947818 (!obj)2019-06-07 12:40:04.662185-0700 audiorecorder[17123:713708] [default] RETURNING UnknownFS PLACEHOLDER: DD976756-AF07-3E73-9070-DC0394DA39C82019-06-07 12:40:04.672260-0700 audiorecorder[17123:713708] [default] RETURNING UnknownFS PLACEHOLDER: 033E6305-BD77-34D3-9776-DF34D167F4B32019-06-07 12:40:04.677395-0700 audiorecorder[17123:713708] [default] RETURNING UnknownFS PLACEHOLDER: B981C2DC-7E8A-391F-B2AE-6587A18D8BBB2019-06-07 12:40:04.680060-0700 audiorecorder[17123:713708] [default] RETURNING kUTTypeFolder PLACEHOLDER: 4334F016-603F-3214-9666-DDD821A44465objc[17123]: Class FIFinderSyncExtensionHost is implemented in both /System/Library/PrivateFrameworks/FinderKit.framework/Versions/A/FinderKit (0x7fffa540a3d8) and /System/Library/PrivateFrameworks/FileProvider.framework/OverrideBundles/FinderSyncCollaborationFileProviderOverride.bundle/Contents/MacOS/FinderSyncCollaborationFileProviderOverride (0x11d4d4f50). One of the two will be used. Which one is undefined.