Entity Framework The specified type member is not supported Exception

using (var context = new EntityContext())
{
    var fromDate = DateTime.Now.AddDays(-7).Date;

    var customer = context.Customers.Where(c => c.CustomerID == 1)
        .Include(c => c.Invoices)
        .Where(c => c.Invoices.Any(i => i.InvoiceDate.Date >= fromDate))
        .FirstOrDefault();
}

using (var context = new CustomerContext())
{
    var fromDate = DateTime.Now.AddDays(-7).Date;

    var customer = context.Customers.Where(c => c.CustomerID == 1)
        .Where(c => c.Invoices.Any(i => DbFunctions.TruncateTime(i.InvoiceDate) >= fromDate))
        .Select(c => new
        {
            c,
            Invoices = c.Invoices.Where(i => DbFunctions.TruncateTime(i.InvoiceDate) >= fromDate)
        })
        .FirstOrDefault();
}