My Catalyst-capable apps stopped building with the newly released Xcode 12. I tested it out also on a brand new SwiftUI project with the same result. I have my App structure looking like the fragment below. This is the code that was generated by Xcode; no modifications. import SwiftUI @main struct TestApp: App {     var body: some Scene {         WindowGroup {             ContentView()         }     } } I get the following compiler errors: 'TestApp' is annotated with @main and must provide a main static function of type () -> Void or () throws -> Void Cannot find type 'App' in scope Cannot find type 'Scene' in scope This code compiles fine when I build for an iPhone or iPad device. Is anyone else seeing this? Any ideas on how to fix it?

I'm trying to use libgit2 in an iOS application. I've packaged up libgit2, libssh2, libssl, and libcrypto in XCFrameworks. The XCFrameworks support iOS arm64, simulator, and Catalyst. I want to build a Swift wrapper over the frameworks and deploy them using a Swift Package. When I link against the XCFrameworks directly in my application, I can consume libgit2 by creating a bridging header and #import <git2.h> from libgit2.xcframework. When I move the code into a Swift Package, it fails to build or find libgit2 even though it's part of the package. I can't find any indication of whether I need a bridging header or how to add the bridging header to my Swift package. Here's my Package.swift file: // swift-tools-version:5.3 import PackageDescription let package = Package(   name: "Git",   platforms: [.iOS(.v13)],   products: [     .library(       name: "Git",       targets: [         "SwiftGit"       ]     ),   ],   targets: [     .target(       name: "SwiftGit",       dependencies: [         .target(name: "libcrypto"),         .target(name: "libssl"),         .target(name: "libssh2"),         .target(name: "libgit2")       ]     ),     .binaryTarget(       name: "libcrypto",       path: "lib/libcrypto.xcframework"     ),     .binaryTarget(       name: "libssl",       path: "lib/libssl.xcframework"     ),     .binaryTarget(       name: "libssh2",       path: "lib/libssh2.xcframework"     ),     .binaryTarget(       name: "libgit2",       path: "lib/libgit2.xcframework"     )   ] ) The documentation seems to indicate that I can reference binaryTarget dependencies in a Swift target in order to create a wrapper library. Can anyone help me to understand what I am missing here? How do I create the equivalent of a bridging header so that I can access the native frameworks from my Swift code? Thank you.