iOS13 beta 7: Landmarks tutorial and dyld: Symbol not found: _$s7SwiftUI7BindingVyxGAA0C11ConvertibleAAMc

When I install the Landmarks demo I get

dyld: Symbol not found: _$s7SwiftUI7BindingVyxGAA0C11ConvertibleAAMc
  Referenced from: /var/containers/Bundle/Application/C33D60FD-1755-4C71-BE6D-539910E65F6E/Landmarks.app/Landmarks
  Expected in: /System/Library/Frameworks/SwiftUI.framework/SwiftUI
 in /var/containers/Bundle/Application/C33D60FD-1755-4C71-BE6D-539910E65F6E/Landmarks.app/Landmarks

I use Xcode 11 beta 5, tested on iOS 13 beta 6 and 7 on real device iPhone SE. Using the simulator is working fine.

In my own project I have the same issue, I got some warnings from Xcode 11 beta 5 like

subscript(_:)' is deprecated: See Release Notes for migration path

After rewriting the code as in the release notes and the code segments in other forums, the message is gone, but the issue still exists.

Anyone haven the same issue with the Landmarks demo, too?