I am getting an error Static method ‘buildExpression’ requires that ‘ToolbarItem<(), Button<some View>>’ conform to ‘View’. This error is the only error that I am currently facing. The code was running before with the same code, however all of a sudden, the error is shown. I tried to revert to the last best-known configuration code but the problem seems to exist since I added enum Sort.

I am unable to figure out the issue.

Kindly Help me with this issue.

issue at -> //ToolbarItem(placement: .navigationBarTrailing)

//
//  ContentView.swift
//  Registration
//
//  Created by Bibin Mathew on 7/2/24.
//

import SwiftUI
struct SearchConfig: Equatable
{
    enum Filter
    {
        case all, isAdult
    }
    
    var query: String = ""
    var filter: Filter = .all
}
enum Sort 
{
    case asc, desc
}

struct ContentView: View
{
    @State private var isShowingNewRegistration = false
    
    @FetchRequest(fetchRequest: Registration.all()) private var registrations
    @State private var searchConfig: SearchConfig = .init()
    @State private var sort: Sort = .asc
    var provider = RegistrationsProvider.shared
    
    var body: some View
    {
        NavigationStack
        {
            List
            {
                ForEach(registrations)
                {
                    registration in
                    
                    ZStack(alignment: .leading)
                    {
                        NavigationLink(destination: RegistrationDetailView(registration: registration))
                        {
                            EmptyView()
                        }
                    }
                    .opacity(0)
                    RegistrationRowView(registration: registration)
                }
            }
            .searchable(text: $searchConfig.query)
            .toolbar
            {
                ToolbarItem(placement: .navigationBarLeading)
                {
                    Button
                    {
                        isShowingNewRegistration.toggle()
                    }
                label:
                    {
                        Image(systemName: "plus").font(.title2)
                    }
                }

                ToolbarItem(placement: .navigationBarTrailing) {
                    
                    Menu {
                        
                        Section {
                            Text("Filter")
                            Picker(selection: $searchConfig.filter) {
                                
                                Text("All").tag(SearchConfig.Filter.all)
                                Text("Favourites").tag(SearchConfig.Filter.fave)

                            } label: {
                                Text("Filter Faves")
                            }
                        }
                        
                        Section {
                            Text("Sort")
                            Picker(selection: $sort) {
                                
                                Label("Asc", systemImage: "arrow.up").tag(Sort.asc)
                                Label("Desc", systemImage: "arrow.down").tag(Sort.desc)
                                
                            } label: {
                                Text("Sort By")
                            }
                        }
                        
                    } label: {
                        Image(systemName: "ellipsis")
                            .symbolVariant(.circle)
                            .font(.title2)
                    }
                }

            }
            .sheet(isPresented: $isShowingNewRegistration)
            {
                NavigationStack
                {
                    CreateRegistrationView(vm: .init(provider: provider))
                }
            }
            .navigationTitle("Registrations")
            .onChange(of: searchConfig)
            {
                newConfig in registrations.nsPredicate = Registration.filter(with: newConfig)
            }
        }
    }
}

#Preview
{
    NavigationStack
    {
        let emptyPreview = RegistrationsProvider.shared
        ContentView(provider: emptyPreview)
            .environment(.managedObjectContext, emptyPreview.viewContext)
            .previewDisplayName("Contacts with No Data")
    }
}