guix pull fails. cannot build guix-package-cache.drv.

hey all.

vidak here.

i cannot get `guix pull` to work for me.

i am having issues getting the package-cache.drv to build.

i was homeless, and unable to update my workstation for about... a

month?

here are some related issues:

i can trace the output logs to this commit, which seems to be the

offending one.

commit -- 3b50b327f7cf3226a0e37bc6afa1e921c9c075f7

```

~ $ cat

/var/log/guix/drvs/zk/1hgixlv3gccgbriad7nr2xyla8bbzx-guix-package-cache.drv

(repl-version 0 1 1)

Generating package cache for

'/gnu/store/1mzdd7rf9r34xiibcs1gpjsf7jkh6a0r-profile'...

(exception unbound-variable (value #f) (value "Unbound variable: ~S")

(value (libpng-1.2)) (value #f))

```

i can `guix pull --commit` to before 31-05-2022, but i cannot seem to

pull to anything later than that date.

can anyone help me?

thanks so much in advance.

~vidak

Hi vidak,

On 16 June 2022 06:28:45 BST, vidak@riseup.net wrote:

Oh no, I hope you're okay <3

This has been reported a few times ;) That was the date when the libpng v1.2 package was removed. However, the guix-gaming channel still references it, so you'll need to remove or patch it for now I guess...

(I think the reason this is such a commonly reported problem is that that exception didn't even give a location! We really should improve the error messages in Guile and Guix... I'll make the first 'papercut' issue report on it.)

close 56012

thanks

On June 16, 2022 7:28:45 AM GMT+02:00, vidak@riseup.net wrote:

This is most likely because one of the channels you're using is still refering to libpng-1.2, but it was removed from guix recertly.