How do I redirect the output of `Console.Error.WriteLine` to a file in a C# console application?

You can redirect the error stream to a file using the `Console.SetError(TextWriter)` method. First, create a `TextWriter` instance that points to the desired file. Example: ```csharp using System.IO; TextWriter errorWriter = new StreamWriter("error.log"); Console.SetError(errorWriter); Console.Error.WriteLine("This error message will be written to error.log"); errorWriter.Close(); // Ensure the data is flushed and the file is closed ```