Streamwriter Access violation

Hello, I'm getting a weird error with my streamwriter code.

Here is where the code is giving me the error

 var save : StreamWriter = new StreamWriter("Saves/Controls/controls.txt",true);

Here is the code.

    function WriteFile(path : String)
 
 {
    
     var save : StreamWriter = new StreamWriter("Saves/Controls/controls.txt");
     save.Flush();
     save.Close();
 
 }

Thanks!

Here is the error

IOException: Sharing violation on path C:\Users\me\Documents\game\Saves\Controls\controls.txt

System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean anonymous, FileOptions options) System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share) (wrapper remoting-invoke-with-check) System.IO.FileStream:.ctor (string,System.IO.FileMode,System.IO.FileAccess,System.IO.FileShare) System.IO.File.OpenRead (System.String path) System.IO.StreamReader..ctor (System.String path, System.Text.Encoding encoding, Boolean detectEncodingFromByteOrderMarks, Int32 bufferSize) System.IO.StreamReader..ctor (System.String path)