Comment # 2 on bug 1137164 from Andrei Borzenkov

It was not gpk-update-viewer but gnome-software. That is what I get when I
click on "Updates are ready to be installed" notification.

pk-log is empty. In journal and pkmon I see:



Jun 04 07:12:56 10.0.2.15 gnome-software[4256]: not handling error
not-supported for action download: could not do eula question as no klass
support
bor@10:~> pkmon
Transactions:
 [none]
daemon connected=1
network status=online
daemon connected=0
daemon connected=1
Transactions:
 1    /1_aaeacada
/1_aaeacada    allow_cancel 1
/1_aaeacada    percentage   -1
/1_aaeacada    role         get-updates
/1_aaeacada    status       wait
/1_aaeacada    status       setup
/1_aaeacada    status       query
/1_aaeacada    percentage   0
/1_aaeacada    status       refresh-cache
/1_aaeacada    percentage   20
/1_aaeacada    percentage   40
/1_aaeacada    percentage   60
/1_aaeacada    percentage   100
/1_aaeacada    percentage   40
/1_aaeacada    percentage   80
/1_aaeacada    percentage   100
/1_aaeacada    status       finished
/1_aaeacada    exit code: success
Transactions:
 [none]
Transactions:
 1    /2_bedbdeac
/2_bedbdeac    allow_cancel 1
/2_bedbdeac    percentage   -1
/2_bedbdeac    role         update-packages
/2_bedbdeac    status       setup
/2_bedbdeac    status       dep-resolve
/2_bedbdeac    percentage   0
/2_bedbdeac    percentage   100
/2_bedbdeac    status       update
/2_bedbdeac    percentage   0
/2_bedbdeac    status       finished
Transactions:
 [none]
/2_bedbdeac    exit code: eula-required
/2_bedbdeac    error code: no-license-agreement, You've to agree/decline a
license
daemon connected=0

bor@10:~> rpm -q gnome-software
gnome-software-3.32.2-1.2.x86_64
bor@10:~>


See also screenshot.

You can trivially reproduce this by downgrading AdobeICCProfiles e.g. to 

http://download.opensuse.org/history/20190529/tumbleweed/repo/non-oss/noarch/AdobeICCProfiles-2.0-156.1.noarch.rpm