Using Xcode 15.0 beta 2 I created a new app that should work with WatchOS 10.0 but when I tried to install the app from my iPhone that has the iOS 17 Developer Beta 2 the message I got was " This app could not be installed at this time. Could not install at at this time." I would like to test my app on the Apple Watch and I'm wondering how I could fix this. All kinds of help would be appreciated!

In “Design and build apps for watchOS 10”, Jennifer showed off a new variable blur effect that is applied to the navigation bar. Is this effect available for use in our own SwiftUI views? I’ve tried using a gradient mask on a material background, but the result isn’t as nice looking because it only fades the opacity of the material, not the blur level.