ASP.NET MVC - "Cannot await 'method group'", and "namespace name 'ASPNETCoreWebApplication' could not be found"

Having an issue where return View(await _context.Reviews.ToListAsync); gives the following error: Cannot await 'method group'

I'm lead to believe that to use the return View(await _context.Reviews.ToListAsync); statement, I need to use using ASPNETCoreWebApplication.data (hence my inclusion of it), but it returns an error: The type or namespace 'ASPNETCoreWebApplication' could not be found [...].

If I remove using <project_name>data, there is the same error as above for ApplicationDbContext in HomeController.cs)

Below is my HomeController.cs:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using ASPNETCoreWebApplication.Data; // "The type or namespace 'ASPNETCoreWebApplication' could not be found [...]"
using <project_name>.Data;
using Microsoft.EntityFrameworkCore;

namespace <project_name>.Controllers
{
    public class HomeController : Controller
    {
        private readonly ApplicationDbContext _context;

        public HomeController(ApplicationDbContext context)
        {
            _context = context;
        }

        public async Task<IActionResult> Reviews()
        {
            // "Cannot await 'method group'"
            return View(await _context.Reviews.ToListAsync);
        }

        public IActionResult Error()
        {
            return View();
        }
    }
}

In case it may be relevant, here is my Reviews.cs Model:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace <project_name>.Models
{
    public class Reviews
    {
        public int Id { get; set; }
        public string Date { get; set; }
        public string Name { get; set; }
        public string Heading { get; set; }
        public string Restaurant { get; set; }
        public string Comment { get; set; }
        public int Rating { get; set; }
        public int Agree { get; set; }
        public int Disagree { get; set; }
    }
}

In HomeController.cs,

Don't make the rookie error of forgetting parentheses:

public async Task<IActionResult> Reviews()
        {
            return View(await _context.Reviews.ToListAsync());
        }