Re: "profile contains conflicting entries..." for packages with the same version

[Tobias Geerinckx-Rice]

Hi Chris,

Chris Keschnat via 写道：
> guix install: error: profile contains conflicting entries for 
> glib
> guix install: error:   first entry: glib@2.70.2
> /gnu/store/zqy7rhv26ax5ng8ws3d3vs8gr1k1k491-glib-2.70.2
> guix install: error:   second entry: glib@2.70.2
> /gnu/store/1gdvmmgimszagxr0l78kcx398c5g6608-glib-2.70.2
> guix install: error:    ... propagated from dconf@0.40.0
> guix install: error:    ... propagated from remmina@1.4.23
> hint: Try upgrading both `glib' and `remmina', or remove one of 
> them
> from the profile.
>
>
> In general I think the solution would be to use multiple 
> profiles[1]
> if I had need for multiple versions of the same package?

In *general*, the solution is to upgrade both in the same 
transaction:

 $ guix install remmina glib

(because installing the latest remmina is equivalent to upgrading 
it).

However, in this particular case it won't work because remmina 
does seem to propagate a different glib than the ‘glib’ package 
exported to the CLI.

I don't have time to investigate, but it seems related to the :bin 
output, because

 $ guix install remmina glib:bin

works fine.

> In general I think the solution would be to use multiple 
> profiles[1]

Maybe, yes.  For a meaningful answer we'll need to know why you're 
installing glib.  Development?  Installing libraries by hand isn't 
something ‘most average users regularly’ do in Guix.

> But why does this happen here? The versions seem to be the same.

But the hashes aren't.  Version numbers aren't very relevant in 
Guix (their main practical use is to make the CLI feel familiar), 
only whether the package is identical or not.

> I did a "guix pull" and "guix upgrade" before and all packages 
> should
> be up to date.

Yes, they would be.  That would often help mitigate this error, 
but sadly not in this case.

Kind regards,

T G-R

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