Subject: bug#44870: Package installation issue: Try upgrading both `package' and `package', or remove one of them from the profile.

From: [email-masked]
Date: Wed, 25 Nov 2020 16:16:30 +0100 (CET)

I have this problem when installing the "polari" package:

guix install polari
The following package will be installed:
   polari 3.36.3

substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
0.4 MB will be downloaded
downloading from https://ci.guix.gnu.org/nar/lzip/lal3dc74hxlqf3cricaadngf87d5fyf4-polari-3.36.3 ...
polari-3.36.3  361KiB                388KiB/s 00:01 [##################] 100.0%

downloading from https://ci.guix.gnu.org/nar/lzip/30cvk19ajynvv0xglnxi8fxcjxhammli-telepathy-idle-0.2.2 ...
telepathy-idle-0.2.2  69KiB          387KiB/s 00:00 [##################] 100.0%

guix install: error: profile contains conflicting entries for glib
guix install: error:   first entry: [email-masked] /gnu/store/l55zrgjpzk52f33g1z9l2333qzk4735k-glib-2.62.6
guix install: error:    ... propagated from [email-masked]
guix install: error:    ... propagated from [email-masked]
guix install: error:    ... propagated from [email-masked]
guix install: error:    ... propagated from [email-masked]
guix install: error:   second entry: [email-masked] /gnu/store/xkfc1275h55ynpgfr3wwmzy9707nblwc-glib-2.62.6
guix install: error:    ... propagated from [email-masked]
guix install: error:    ... propagated from [email-masked]
guix install: error:    ... propagated from [email-masked]
guix install: error:    ... propagated from [email-masked]
hint: Try upgrading both `polari' and `lollypop', or remove one of them from the
profile.

What is the solution?