What could this be?

[Joel]

On Monday, 11 May 2020 at 11:37:40 UTC, Simen Kjærås wrote:
> On Monday, 11 May 2020 at 11:20:51 UTC, Joel wrote:
>> I'm gotten stuck with this error - "..is not visible from 
>> module.."
>
> Without some code it's hard to say exactly, but this generally 
> means you're referencing a private symbol in a different module:
>
> module foo;
> private struct S {}
>
> module bar;
> import foo;
> foo.S s; // foo.S is not visible from module bar
>
> --
>   Simen

Thanks Simen.