Help!Using VS debugging to open IO is not a problem, but deploying it is abnormal

[jingqunhu]

using System;
using System.Device.Gpio;
using System.Diagnostics;
using System.Threading;

namespace NFApp1
{
public class Program
{
private static GpioController gpioController = new GpioController();

    /// <summary>
    /// LED1 IO
    /// </summary>
    private static GpioPin LED1IO = null;

    /// <summary>
    /// LED1
    /// </summary>
    private static int LED1IONum = 12;

    public static void Main()
    {
        LED1IO = gpioController.OpenPin(LED1IONum, PinMode.Output);
        LED1IO.Write(PinValue.Low);

        while (true)
        {
            Thread.Sleep(1000);
            LED1IO.Write(PinValue.High);
            Thread.Sleep(1000);
            LED1IO.Write(PinValue.Low);
        }

        Thread.Sleep(Timeout.Infinite);
    }


}

}

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@򾖚¡ÿNFPKTV1 ++++ Exception System.InvalidOperationException - 0x00000000 (1) ++++
++++ Message:
++++ System.Device.Gpio.GpioController::InternalOpenPin [IP: 0010] ++++
++++ NFApp1.Program::Main [IP: 0016] ++++
Uncaught exception
Done.
NFPKTV1

[jingqunhu]

It should be that the IO port is occupied