How to create a directory manager with System.IO library properly?

Question

I want to make a simple code that moves specific files from "Downloads" to another directory. If i run this program it should move this specific pdf-file to "PDFs"-directory:

Here is the code:

 public const string path = @"C:\Users\eduar\Downloads\";
    public const string newDic = @"C:\Users\eduar\Downloads\PDFs";

    public static void Main()
    {
        if (!Directory.Exists(newDic))
        {
            Directory.CreateDirectory(newDic);
        }

        Greetings();

        Console.ReadKey();
    }

    public static void Greetings()
    {
        Console.WriteLine("Hello, please press any key to sort all files in Downloads dictionary  \n");
        Console.ReadKey();

        var files = Directory.GetFiles(path);

        foreach (var file in files)

            if (Path.GetExtension(file) == ".pdf")
            {
                try
                {
                    File.Move(file, newDic, true);
                }
                catch (Exception ex)
                {

                    Console.WriteLine(ex.ToString());
                }
            }
    }

Here is the ERROR-code:

PS: im new to Stackoverflow didnt notice that part. The whole question is above.