Why is modal not returning the Contact object selected? I'm getting a compile time error

I'm getting an error message trying to compile my modal example

Severity Code Description Project File Line Suppression StateError (active) CS1503 Argument 2: cannot convert from 'method group' to 'Microsoft.AspNetCore.Components.EventCallback' BlazorApp1 C:\Users\rodchar\source\repos\ARLAppRegistration\BlazorApp1\Pages\Model-Test.razor 5

modal-test.razor

@page "/modal-test"<button @onclick="OpenModal">Open Modal</button><Modal OnSave="HandleSave" @ref="modal"></Modal><p>Selected contact: @SelectedContact?.Name</p>@code {    private Modal modal;    private Contact SelectedContact;    private void OpenModal()    {        modal?.Open();    }    private void HandleSave(Contact contact)    {        SelectedContact = contact;    }    public class Contact    {        public int Id { get; set; }        public string Name { get; set; }    }}

modal.razor

@page "/modal"<div class="modal @ModalClass" tabindex="-1" role="dialog" style="display:@ModalDisplay" aria-labelledby="modalTitle" aria-describedby="modalBody" aria-hidden="@(!ShowBackdrop)"><div class="modal-dialog" role="document"><div class="modal-content"><div class="modal-header"><h5 class="modal-title" id="modalTitle">Select a Contact</h5><button type="button" class="close" data-dismiss="modal" aria-label="Close" @onclick="Close"><span aria-hidden="true">×</span></button></div><div class="modal-body" id="modalBody"><ul>                    @foreach (var contact in Contacts)                    {<li @onclick="() => SelectContact(contact)">@contact.Name</li>                    }</ul></div><div class="modal-footer"><button type="button" class="btn btn-secondary" data-dismiss="modal" @onclick="Close">Close</button></div></div></div></div>@if (ShowBackdrop){<div class="modal-backdrop fade show"></div>}@code {    public string ModalDisplay { get; set; } = "none;";    public string ModalClass { get; set; } = "";    public bool ShowBackdrop { get; set; } = false;    [Parameter]    public EventCallback<Contact> OnSave { get; set; }    private List<Contact> Contacts = new List<Contact>    {        new Contact { Id = 1, Name = "John Doe" },        new Contact { Id = 2, Name = "Jane Smith" },        new Contact { Id = 3, Name = "Bob Johnson" }    };    public void Open()    {        ModalDisplay = "block;";        ModalClass = "show";        ShowBackdrop = true;        StateHasChanged();    }    public void Close()    {        ModalDisplay = "none";        ModalClass = "";        ShowBackdrop = false;        StateHasChanged();    }    private async Task SelectContact(Contact contact)    {        if (OnSave.HasDelegate)        {            await OnSave.InvokeAsync(contact);        }        Close();    }    public class Contact    {        public int Id { get; set; }        public string Name { get; set; }    }}