function app.download (string[] links) is not callableusing argument types (string, string)

[Suliman via Digitalmars-d-learn]

I try to compile simple example:

import std.net.curl;

void main()
{
download("ftp.digitalmars.com/sieve.ds", 
"D:\\Project\\2014\\txt_downloader\\img\\1.foo");

}

but I am getting error:

function app.download (string[] links) is not callableusing 
argument types (string, string)