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

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: glib@2.62.6 /gnu/store/l55zrgjpzk52f33g1z9l2333qzk4735k-glib-2.62.6

guix install: error:    ... propagated from dbus-glib@0.110

guix install: error:    ... propagated from telepathy-glib@0.24.1

guix install: error:    ... propagated from telepathy-idle@0.2.2

guix install: error:    ... propagated from polari@3.36.3

guix install: error:   second entry: glib@2.62.6 /gnu/store/xkfc1275h55ynpgfr3wwmzy9707nblwc-glib-2.62.6

guix install: error:    ... propagated from gstreamer@1.16.2

guix install: error:    ... propagated from gst-plugins-base@1.16.2

guix install: error:    ... propagated from gst-plugins-ugly@1.16.2

guix install: error:    ... propagated from lollypop@1.4.2

hint: Try upgrading both `polari' and `lollypop', or remove one of them from the

profile.

What is the solution?

On Wed, Nov 25, 2020 at 04:16:30PM +0100, musics--- via Bug reports for GNU Guix wrote:

[...]

[...]

The solution is as described in the hint: Try upgrading both 'polari'

and 'lollypop', or uninstall one of them.

You've hit a limitation in Guix's ability to allow multiple versions of

the same package to be installed in a profile, which is itself a

limitation in how the programs 'gstreamer' and 'dbus-glib' work.

Thank you, the problem was solved...

~$ guix package -u lollypop

The following package will be upgraded:

   lollypop (dependencies or package changed)

guix package: error: profile contains conflicting entries for gstreamer

guix package: error:   first entry: gstreamer@1.16.2 /gnu/store/mpp1havy3dk9r1y9wmim21nxk99zfzn0-gstreamer-1.16.2

guix package: error:    ... propagated from gst-plugins-good@1.16.2

guix package: error:    ... propagated from lollypop@1.4.2

guix package: error:   second entry: gstreamer@1.16.2 /gnu/store/par5fhvqx8hssx7dh61i6cagfgppwyh0-gstreamer-1.16.2

guix package: error:    ... propagated from gst-plugins-base@1.16.2

guix package: error:    ... propagated from gst-libav@1.16.2

hint: Try upgrading both `lollypop' and `gst-libav', or remove one of them from

the profile.

~$ guix package -u gst-libav

The following package will be upgraded:

   gst-libav (dependencies or package changed)

guix package: error: profile contains conflicting entries for gstreamer

guix package: error:   first entry: gstreamer@1.16.2 /gnu/store/mpp1havy3dk9r1y9wmim21nxk99zfzn0-gstreamer-1.16.2

guix package: error:    ... propagated from gst-libav@1.16.2

guix package: error:   second entry: gstreamer@1.16.2 /gnu/store/par5fhvqx8hssx7dh61i6cagfgppwyh0-gstreamer-1.16.2

guix package: error:    ... propagated from gst-plugins-base@1.16.2

guix package: error:    ... propagated from gst-plugins-ugly@1.16.2

guix package: error:    ... propagated from lollypop@1.4.2

hint: Try upgrading both `gst-libav' and `lollypop', or remove one of them from

the profile.

~$ guix package -u lollypop -u gst-libav -u gtranslator

The following packages will be upgraded:

   gtranslator (dependencies or package changed)

   lollypop    (dependencies or package changed)

The following derivation will be built:

   /gnu/store/2957nz5jih3rd9z9lhg00y8rba40rfwn-profile.drv

applying 1 graft for /gnu/store/wf2cgbcfzgf05zg4zsx5rssf3q8w6m82-gmime-3.2.7.drv ...

applying 13 grafts for /gnu/store/0q2alnyq4qfhphis5nprivwfhka7zbi9-glade-3.36.0.drv ...

applying 14 grafts for /gnu/store/2whvnv5sdv957kajh5pi9f2hl4dw8vsa-libgda-5.2.10.drv ...

applying 7 grafts for /gnu/store/6q2piffhp8fxazqigjsqxii9bwmkvdgf-libhandy-1.0.2.drv ...

applying 12 grafts for /gnu/store/gq8ypjnnvmjvyd849wgf3q7xn4ikk21n-gtranslator-3.36.0.drv ...

applying 3 grafts for /gnu/store/nrpyw5d4r48lw7lg1na4x14x963mdfdl-python-gst-1.16.2.drv ...

applying 7 grafts for /gnu/store/l1s5cspy071by56h0nlrihi0py41y9rl-python-pillow-8.0.1.drv ...

applying 10 grafts for /gnu/store/i4h6pg5cfh61fqgmc9czai0q6zl16m7x-sdl-1.2.15.drv ...

applying 25 grafts for /gnu/store/baywnyr15jf0kmr8gi4gxkx46b1x9ldv-lollypop-1.4.2.drv ...

applying 4 grafts for /gnu/store/4avb54p5x47vkbzm2kcciqhiscx317rr-libmpeg2-0.5.1.drv ...

applying 4 grafts for /gnu/store/5q0vf93n91sqzs6wninxnan9ix4iql5v-gst-plugins-ugly-1.16.2.drv ...

building CA certificate bundle...

building fonts directory...

generating GLib schema cache...

creating GTK+ icon theme cache...

building cache files for GTK+ input methods...

building directory of Info manuals...

building database for manual pages...

building XDG desktop file cache...

building XDG MIME database...

building profile with 16 packages...

Solved