Le 2017-11-07 02:56, myglc2 a écrit :
> Please note: these replies are separated by topics in an effort to make 
> the
> threads more topical ...
> 
> On 11/06/2017 at 17:16 Leo Famulari writes:
> 
>> On Mon, Nov 06, 2017 at 03:12:11PM -0500, myglc2 wrote:
> [...]
>>> Guix config errors are reported as raw scheme errors which are not
>>> user-friendly, except, perhaps, to guile users ;-) Could we improve 
>>> this
>>> situation by adding config troubleshooting guidance to the doc?
>> 
>> Yes, we do try to add helpful error messages, although obviously there
>> is a lot more work to be done.
> 
> I didn't mean this point critically. Rather as a statement of fact. 
> When
> I said ...
> 
>>> Could we improve this situation by adding config troubleshooting
>>> guidance to the doc?
> 
> ... I was thinking something like ...
> 
> vvvvvvvvvvvvvvvvvv
> 
> Troubleshooting your config file:
> 
> If you get an error like:
> 
> ice-9/boot-9.scm:[...] no code for module (gnu packages <package name>)
> 
> You have either specified a package name that does not exist, or your
> (use-package-modules <package module names>) does not contain the name
> of a package module that contains the definition of <package name>.
> 
> You can determine which, if any, module contains a package definition 
> by
> yada yada yada
> 
> ^^^^^^^^^^^^^^^^^^
> 
> ... thinking that then there would be a search hit in the doc for 'no
> code for module' which might enable some users to understand what they
> are doing wrong.
> 
> WDYT? - George

Hi George,

Since we encourage users to use use-package-modules etc, I think it's 
better
to catch this error and explain it to users as soon as it happens. It's 
more
friendly for users than a troubleshooting section in the manual. This 
patch
would print:


Package module "abc" does not exist.
ERROR: In procedure scm-error:
ERROR: check "use-package-modules" line in your configuration.


If you try to use something like (use-package-modules linux abc), and
similar messages for services and system modules.

WDYT?