LINQ query orderBy a subquery

How do I order by date using LINQ query for an included table

    public async Task<IList<TaskSchedule>> GetTask(int id)
    {    
         var taskSchedule = await _context.TaskSchedules
            .Where(u => u.Id == id)
            .Include(ts => ts.Notes.OrderBy(i => i.DateCreated))   //this is what needs to be in ascneding order of date
            .Include(ts => ts.Attachments)
            .Include(c => c.customer)
            .ToListAsync();      
            
        return taskSchedule;  
    }  

Below code works, however, it does not sort out the notes in date ascending order

   public async Task<IList<TaskSchedule>> GetTask(int id)
    {    
         var taskSchedule = await _context.TaskSchedules
            .Where(u => u.Id == id)
            .Include(ts => ts.Notes)
            .Include(ts => ts.Attachments)
            .Include(c => c.customer)
            .ToListAsync();
       
        return taskSchedule;  
    }  

The error message i get is a 500 (Internal Server Error)

System.ArgumentException: Expression of type ‘System.Linq.IOrderedQueryable1[Schedular.API.Models.Note]' cannot be used for return type 'System.Linq.IOrderedEnumerable1[Schedular.API.Models.Note]’

This is the API data that comes back when I use the working code. The notes need to be in the order of the date it was created. Currently, it’s the other way around.

[
{
    "id": 102,
    "title": "this should display",
    "start": null,
    "end": null,
    "isClosed": false,
    "highPriority": false,
    "hasTimeLimit": false,
    "customer": null,
    "customerId": null,
    "notes": [
        {
            "id": 70,
            "notesInfo": "add some notes first",
            "dateCreated": "2020-11-17T12:20:00",
            "user": null,
            "userId": 1,
            "taskScheduleId": 102
        },
        {
            "id": 72,
            "notesInfo": "add some notes second",
            "dateCreated": "2020-11-18T16:35:00",
            "user": null,
            "userId": 1,
            "taskScheduleId": 102
        },
        {
            "id": 73,
            "notesInfo": "add some notes third",
            "dateCreated": "2020-11-19T18:35:00",
            "user": null,
            "userId": 1,
            "taskScheduleId": 102
        }
    ],
    "attachments": [],
    "userCurrentAssignedId": 1,
    "userCurrentAssigned": null,
    "userLastEditId": 1,
    "userLastEdit": null,
    "userLastEditDate": "2020-11-19T15:37:00",
    "taskCreatedDate": "2020-11-19T15:37:00"
}

]

var taskSchedule = await _context.TaskSchedules
        .Where(u => u.Id == id)
        .Include(ts => ts.Notes)
        .Include(ts => ts.Attachments)
        .Include(c => c.customer)
        .ToListAsync();

taskSchedule.ForEach(t => t.Notes = t.Notes.OrderBy(n => n.DateCreated).ToList());

 var taskSchedule = 
    from ts in await _context.TaskSchedules
    where ts.Id == id
    select new TaskScheduleDTO
    {
        Notes = ts.Notes.OrderBy(n => n.DateCreated).ToList(),
        Attachments = ts.Attachments.ToList(),
        Cutomser = ts.Customer
    }