How does this error from dub mean "dlang Non-selected Y package is available with version X"?

[Marc]

On Monday, 12 February 2018 at 15:51:58 UTC, Marc wrote:
> the warning is:
>
>> Non-selected package lnk is available with version ~>0.2.1.
>
> What does it mean by *Non-selected* package lnk is available?
> from what I could tell from the page, it's highest version.
> But I've tried low versions anyway to see if it Works 0.2.0, 
> 0.1.1 etc and none did.
>
> I noticied I put "lnk": "~>0.2.1" on cachedUpgrades section so 
> I moved there to just created "dependencies" section then the 
> dub's error is gone but it fail to find the lnk library:
>
>> Error: module lnk is in file 'lnk.d' which cannot be read
>
> some info:
>
> The package I'm trying to include is: 
> https://code.dlang.org/packages/lnk
> DUB version 1.5.0, built on Sep  1 2017
> DMD32 D Compiler v2.076.0
> Windows 10/64bit
>
> What am I missing? I'm new to dub so everything is new to me, 
> by now.

so I find the issue. I'm ashamed to say: I was editing the 
dub.json inside the dub folder not the one in the my 
application's root.