Error: cannot return non-void from void function

[Graham Fawcett via Digitalmars-d-learn]

On Thursday, 27 November 2014 at 13:07:59 UTC, Suliman wrote:
> Full function look like this:
>
> auto parseConfig()
> {
> 	auto config = Ini.Parse(getcwd ~ "\\" ~ "config.ini");
> 	string txtlinks = getcwd ~ "\\" ~ config.getKey("input_links");
> 	if(!exists(txtlinks))
> 	{
> 		writeln("Can't find input file with list of links.");
> 		return;
> 	}
> 	auto lines = File(txtlinks, "r").byLine;
> 	return lines;
>
> }

You have two return statements in your function. Each of them 
returns a result of a different type (the first one returns a 
"void" result). That's not allowed.

Instead of writing "Can't find input file" and then returning, 
consider throwing an exception. Then you only have one return 
statement, and one return type.

Graham