using System;

using System.Threading;

using System.Threading.Tasks;

​

var f = new Foo();

await f.Bar();

Console.WriteLine("Finished");

await Task.Delay(8000);

​

public class Foo{

​

    public async Task Bar()

    {

        _ = Task.Run(async () =>

        {

            try

            {

                await LongRunningTask();

            }

            catch (Exception ex)

            {

                Console.WriteLine("error");

            }

        });

    }

​

    private async Task LongRunningTask()

    {

        await Task.Delay(5000);

        Console.WriteLine("Finished long running task");

    }

}

​

​