Invalid foreach aggregate

[Marc Schütz via Digitalmars-d-learn]

On Tuesday, 17 November 2015 at 12:41:45 UTC, Chris wrote:
> On Tuesday, 17 November 2015 at 12:22:22 UTC, Marc Schütz wrote:
>> In any case, I'd suggest you fix your opIndex(), except if 
>> there's a really good reason it is as it is.
>
> I see. Thanks for the explanation. What would be the easiest 
> fix for this example?

Do you actually need the opIndex()? If not, just remove it.