Xcode prompts the error at var body: some View. I cannot understand what's wrong here because there was no changes after the last successful build. To solve I have already done: Clean Build Folder for several times Restart Xcode Nothing worked. import SwiftUI struct HomeView: View { @StateObject private var viewModel = HomeViewModel() @State var tabSelection: Int = 0 var body: some View { TabView { NavigationStack { Group { if viewModel.entries.isEmpty { EmptyStateView() } else { EntriesGridView(entries: viewModel.entries, tags: viewModel.tags, selectedTag: $viewModel.selectedTags) } } } .tabItem { Label("Saved", systemImage: "bookmark") } SettingsView() .tabItem { Label("Settings", systemImage: "gear") } } .onAppear { viewModel.fetchTags() viewModel.fetchEntries() } } } #Preview { HomeView() } Other related parts without any errors: HomeViewModel.swift import SwiftUI import Firebase import FirebaseFirestore import FirebaseFirestoreSwift import os.log @MainActor class HomeViewModel: ObservableObject { @Published var entries: [DokuEntry] = [] @Published var tags: [String] = [] @Published var selectedTags: String? private var db = Firestore.firestore() private let logger = Logger(subsystem: "dev.egecam.Doku", category: "HomeViewModel") init() { logger.log("HomeViewModel initialized") fetchEntries() fetchTags() } // rest of the code } EntrisGridView.swift import SwiftUI import LinkPresentation struct EntriesGridView: View { @Environment(\.colorScheme) var colorScheme @StateObject private var viewModel = HomeViewModel() @State private var entryFavouriteStatus: Bool = false @Binding var selectedTag: String? let entries: [DokuEntry] let tags: [String] let columns = Array(repeating: GridItem(.flexible(), spacing: 18), count: 2) private let impactMed = UIImpactFeedbackGenerator(style: .medium) var filteredEntries: [DokuEntry] { if let selectedTag = selectedTag { return entries.filter({ $0.tags.contains(selectedTag) }) } else { return entries } } // rest of the code }