I tried again today, I simply cannot make it work: user@ubuntu:~$ apport-retrace -v -s -R -S system /var/crash/_usr_bin_gnome-shell.1000.crash Get:1 http://ppa.launchpad.net/saiarcot895/chromium-dev/ubuntu focal InRelease [20.8 kB] Ign http://ddebs.ubuntu.com focal InRelease Ign http://ddebs.ubuntu.com focal-updates InRelease Get:2 http://ddebs.ubuntu.com focal Release [34.7 kB] Get:3 http://archive.canonical.com/ubuntu focal InRelease [10.9 kB] Get:4 http://ddebs.ubuntu.com focal-updates Release [34.3 kB] Get:5 http://ddebs.ubuntu.com focal Release.gpg [819 B] Get:6 http://ddebs.ubuntu.com focal-updates Release.gpg [819 B] Get:7 https://mirror.init7.net/ubuntu focal InRelease [255 kB] Get:8 http://ppa.launchpad.net/saiarcot895/chromium-dev/ubuntu focal/main amd64 Packages [1604 B] Get:9 http://archive.canonical.com/ubuntu focal/partner Sources [1412 B] Get:10 http://ddebs.ubuntu.com focal/main amd64 Packages [523 kB] Get:11 http://ppa.launchpad.net/saiarcot895/chromium-dev/ubuntu focal/main Translation-en [1084 B] Get:12 http://archive.canonical.com/ubuntu focal/partner amd64 Packages [1596 B] Get:13 http://archive.canonical.com/ubuntu focal/partner Translation-en [804 B] Get:14 https://mirror.init7.net/ubuntu focal-updates InRelease [79.7 kB] Get:15 https://mirror.init7.net/ubuntu focal-backports InRelease [79.7 kB] Get:16 http://ddebs.ubuntu.com focal/universe amd64 Packages [4426 kB] Get:17 https://mirror.init7.net/ubuntu focal-security InRelease [79.7 kB] Get:18 https://mirror.init7.net/ubuntu focal/multiverse Sources [176 kB] Get:19 https://mirror.init7.net/ubuntu focal/main Sources [845 kB] Get:20 https://mirror.init7.net/ubuntu focal/restricted Sources [7032 B] Get:21 https://mirror.init7.net/ubuntu focal/universe Sources [9797 kB] Get:22 http://ddebs.ubuntu.com focal/multiverse amd64 Packages [67.4 kB] Get:23 https://mirror.init7.net/ubuntu focal/main amd64 Packages [984 kB] Get:24 https://mirror.init7.net/ubuntu focal/main Translation-en [506 kB] Get:25 https://mirror.init7.net/ubuntu focal/main amd64 DEP-11 Metadata [498 kB] Get:26 https://mirror.init7.net/ubuntu focal/main DEP-11 48x48 Icons [90.9 kB] Get:27 https://mirror.init7.net/ubuntu focal/main DEP-11 64x64 Icons [160 kB] Get:28 https://mirror.init7.net/ubuntu focal amd64 Contents (deb) [41.3 MB] Get:29 https://mirror.init7.net/ubuntu focal/restricted amd64 Packages [21.4 kB] Get:30 https://mirror.init7.net/ubuntu focal/restricted Translation-en [6136 B] Get:31 https://mirror.init7.net/ubuntu focal/universe amd64 Packages [8650 kB] Get:32 https://mirror.init7.net/ubuntu focal/universe Translation-en [5161 kB] Get:33 https://mirror.init7.net/ubuntu focal/universe amd64 DEP-11 Metadata [3618 kB] Get:34 https://mirror.init7.net/ubuntu focal/universe DEP-11 48x48 Icons [3008 kB] Get:35 https://mirror.init7.net/ubuntu focal/universe DEP-11 64x64 Icons [7962 kB] Get:36 https://mirror.init7.net/ubuntu focal/multiverse amd64 Packages [145 kB] Get:37 https://mirror.init7.net/ubuntu focal/multiverse Translation-en [106 kB] Get:38 https://mirror.init7.net/ubuntu focal/multiverse amd64 DEP-11 Metadata [46.8 kB] Get:39 https://mirror.init7.net/ubuntu focal/multiverse DEP-11 48x48 Icons [15.1 kB] Get:40 https://mirror.init7.net/ubuntu focal/multiverse DEP-11 64x64 Icons [196 kB] Fetched 88.9 MB in 6s (6404 kB/s) WARNING: package libicu63 does not exist, ignoring ERROR: Package download error, try again later: Untrusted packages: https://launchpad.net/ubuntu/+archive/primary/+files/bash-dbgsym_5.0-6ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/bubblewrap_0.4.0-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/evolution-data-server_3.34.1-2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/evolution-data-server-common_3.34.1-2_all.deb https://launchpad.net/ubuntu/+archive/primary/+files/gir1.2-nm-1.0_1.22.4-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/gir1.2-pango-1.0_1.44.7-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/gir1.2-vte-2.91_0.58.2-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/glib-networking-dbgsym_2.63.91-1ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/glib-networking-services-dbgsym_2.63.91-1ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/gnome-keyring-dbgsym_3.35.90-1ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/kmod-dbgsym_27-1ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libboost-thread1.71.0_1.71.0-6ubuntu1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libcamel-1.2-62_3.34.1-2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libcap2_2.27-1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libcap2-bin_2.27-1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libcups2-dbgsym_2.3.1-9ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libcurl3-gnutls-dbgsym_7.68.0-1ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libebackend-1.2-10_3.34.1-2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libebook-1.2-20_3.34.1-2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libebook-contacts-1.2-3_3.34.1-2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libecal-2.0-1_3.34.1-2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libedata-book-1.2-26_3.34.1-2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libedata-cal-2.0-1_3.34.1-2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libedataserver-1.2-24_3.34.1-2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libedataserverui-1.2-2_3.34.1-2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libgmp10-dbgsym_6.2.0+dfsg-4_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libharfbuzz-icu0_2.6.4-1ubuntu1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libharfbuzz0b_2.6.4-1ubuntu1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libical3_3.0.7-1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libjavascriptcoregtk-4.0-18_2.26.3-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libkmod2-dbgsym_27-1ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libllvm9_9.0.1-8build1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/liblmdb0-dbgsym_0.9.23-0ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libmozjs-60-0_60.8.0-2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libmpdec2-dbgsym_2.4.2-3_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libnm0_1.22.4-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libnss-systemd-dbgsym_244.3-1ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libpam-cap_2.27-1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libpam-gnome-keyring-dbgsym_3.35.90-1ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libpam-systemd-dbgsym_244.3-1ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libpango-1.0-0_1.44.7-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libpangocairo-1.0-0_1.44.7-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libpangoft2-1.0-0_1.44.7-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libpangoxft-1.0-0_1.44.7-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libphonenumber7_7.1.0-5ubuntu9_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libproxy1v5-dbgsym_0.4.15-9ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libpulse-mainloop-glib0_13.0-3ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libpulse0_13.0-3ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libpulsedsp_13.0-3ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libpython3.8_3.8.2~rc1-1ubuntu1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libpython3.8-dbg_3.8.2~rc1-1ubuntu1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libpython3.8-minimal_3.8.2~rc1-1ubuntu1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libpython3.8-stdlib_3.8.2~rc1-1ubuntu1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libreadline8_8.0-3_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libsane_1.0.27-3.2ubuntu4_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libsane-common_1.0.27-3.2ubuntu4_all.deb https://launchpad.net/ubuntu/+archive/primary/+files/libselinux1-dbgsym_3.0-1build1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libsmbclient_4.11.5+dfsg-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libsmbclient-dbgsym_4.11.5+dfsg-1ubuntu2_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libsystemd0-dbgsym_244.3-1ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libtag1v5_1.11.1+dfsg.1-0.3_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libtag1v5-vanilla_1.11.1+dfsg.1-0.3_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libudev1-dbgsym_244.3-1ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libvisual-0.4-0_0.4.0-16ubuntu1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libvisual-0.4-0-dbgsym_0.4.0-16ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libvte-2.91-0_0.58.2-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libvte-2.91-common_0.58.2-1ubuntu2_all.deb https://launchpad.net/ubuntu/+archive/primary/+files/libwbclient0_4.11.5+dfsg-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libwbclient0-dbgsym_4.11.5+dfsg-1ubuntu2_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libwebkit2gtk-4.0-37_2.26.3-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libxml2_2.9.4+dfsg1-8ubuntu3_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libxslt1.1-dbgsym_1.1.34-3_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/libxvmc1_1.0.12-0ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/network-manager_1.22.4-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/pulseaudio_13.0-3ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/pulseaudio-module-bluetooth_13.0-3ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/pulseaudio-utils_13.0-3ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/python3-urllib3_1.24.1-1ubuntu2_all.deb https://launchpad.net/ubuntu/+archive/primary/+files/python3.8_3.8.2~rc1-1ubuntu1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/python3.8-dbg_3.8.2~rc1-1ubuntu1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/python3.8-minimal_3.8.2~rc1-1ubuntu1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/readline-common_8.0-3_all.deb https://launchpad.net/ubuntu/+archive/primary/+files/samba-libs_4.11.5+dfsg-1ubuntu2_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/samba-libs-dbgsym_4.11.5+dfsg-1ubuntu2_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/system-config-printer-udev-dbgsym_1.5.12-0ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/systemd-dbgsym_244.3-1ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/udev-dbgsym_244.3-1ubuntu1_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/xserver-xorg-core-dbgsym_1.20.7-2ubuntu2_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/xserver-xorg-legacy-dbgsym_1.20.7-2ubuntu2_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/xwayland-dbgsym_1.20.7-2ubuntu2_amd64.ddeb https://launchpad.net/ubuntu/+archive/primary/+files/zenity_3.32.0-4_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/zenity-common_3.32.0-4_all.deb user@ubuntu:~$ apport-retrace -v -s -R -S system /var/crash/_usr_bin_gnome-shell.1000.crash Get:1 http://ppa.launchpad.net/saiarcot895/chromium-dev/ubuntu focal InRelease [20.8 kB] Get:2 http://archive.canonical.com/ubuntu focal InRelease [10.9 kB] Ign http://ddebs.ubuntu.com focal InRelease Ign http://ddebs.ubuntu.com focal-updates InRelease Get:3 http://ddebs.ubuntu.com focal Release [34.7 kB] Get:4 https://mirror.init7.net/ubuntu focal InRelease [255 kB] Get:5 http://ddebs.ubuntu.com focal-updates Release [34.3 kB] Get:6 http://archive.canonical.com/ubuntu focal/partner Sources [1412 B] Get:7 http://ddebs.ubuntu.com focal Release.gpg [819 B] Get:8 http://ppa.launchpad.net/saiarcot895/chromium-dev/ubuntu focal/main amd64 Packages [1604 B] Get:9 http://ddebs.ubuntu.com focal-updates Release.gpg [819 B] Get:10 http://archive.canonical.com/ubuntu focal/partner amd64 Packages [1596 B] Get:11 http://archive.canonical.com/ubuntu focal/partner Translation-en [804 B] Get:12 https://mirror.init7.net/ubuntu focal-updates InRelease [79.7 kB] Get:13 https://mirror.init7.net/ubuntu focal-backports InRelease [79.7 kB] Get:14 https://mirror.init7.net/ubuntu focal-security InRelease [79.7 kB] Get:15 http://ppa.launchpad.net/saiarcot895/chromium-dev/ubuntu focal/main Translation-en [1084 B] Get:16 http://ddebs.ubuntu.com focal/main amd64 Packages [523 kB] Get:17 https://mirror.init7.net/ubuntu focal/main Sources [845 kB] Get:18 http://ddebs.ubuntu.com focal/universe amd64 Packages [4426 kB] Get:19 https://mirror.init7.net/ubuntu focal/restricted Sources [7032 B] Get:20 https://mirror.init7.net/ubuntu focal/multiverse Sources [176 kB] Get:21 https://mirror.init7.net/ubuntu focal/universe Sources [9797 kB] Get:22 http://ddebs.ubuntu.com focal/multiverse amd64 Packages [67.4 kB] Get:23 https://mirror.init7.net/ubuntu focal/main amd64 Packages [984 kB] Get:24 https://mirror.init7.net/ubuntu focal/main Translation-en [506 kB] Get:25 https://mirror.init7.net/ubuntu focal/main amd64 DEP-11 Metadata [498 kB] Get:26 https://mirror.init7.net/ubuntu focal/main DEP-11 48x48 Icons [90.9 kB] Get:27 https://mirror.init7.net/ubuntu focal/main DEP-11 64x64 Icons [160 kB] Get:28 https://mirror.init7.net/ubuntu focal amd64 Contents (deb) [41.3 MB] Get:29 https://mirror.init7.net/ubuntu focal/restricted amd64 Packages [21.4 kB] Get:30 https://mirror.init7.net/ubuntu focal/restricted Translation-en [6136 B] Get:31 https://mirror.init7.net/ubuntu focal/universe amd64 Packages [8650 kB] Get:32 https://mirror.init7.net/ubuntu focal/universe Translation-en [5161 kB] Get:33 https://mirror.init7.net/ubuntu focal/universe amd64 DEP-11 Metadata [3618 kB] Get:34 https://mirror.init7.net/ubuntu focal/universe DEP-11 48x48 Icons [3008 kB] Get:35 https://mirror.init7.net/ubuntu focal/universe DEP-11 64x64 Icons [7962 kB] Get:36 https://mirror.init7.net/ubuntu focal/multiverse amd64 Packages [145 kB] Get:37 https://mirror.init7.net/ubuntu focal/multiverse Translation-en [106 kB] Get:38 https://mirror.init7.net/ubuntu focal/multiverse amd64 DEP-11 Metadata [46.8 kB] Get:39 https://mirror.init7.net/ubuntu focal/multiverse DEP-11 48x48 Icons [15.1 kB] Get:40 https://mirror.init7.net/ubuntu focal/multiverse DEP-11 64x64 Icons [196 kB] Fetched 88.9 MB in 6s (7820 kB/s) WARNING: package libicu63 does not exist, ignoring Traceback (most recent call last): File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 892, in install_packages cache_pkg.candidate = cache_pkg.versions[ver] File "/usr/lib/python3/dist-packages/apt/package.py", line 1033, in __getitem__ raise KeyError("Version: %r not found." % (item)) KeyError: "Version: '1:13.0-3ubuntu2' not found." During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1528, in _conn_request conn.connect() File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1290, in connect address_info = socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM) File "/usr/lib/python3.8/socket.py", line 918, in getaddrinfo for res in _socket.getaddrinfo(host, port, family, type, proto, flags): socket.gaierror: [Errno -3] Temporary failure in name resolution During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/bin/apport-retrace", line 322, in sandbox, cache, outdated_msg = apport.sandboxutils.make_sandbox( File "/usr/lib/python3/dist-packages/apport/sandboxutils.py", line 202, in make_sandbox outdated_msg = apport.packaging.install_packages( File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 894, in install_packages (lp_url, sha1sum) = self.get_lp_binary_package(self.get_distro_name(), File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 267, in get_lp_binary_package launchpad = Launchpad.login_anonymously('apport-retrace', 'production', File "/usr/lib/python3/dist-packages/launchpadlib/launchpad.py", line 381, in login_anonymously return cls(credentials, None, None, service_root=service_root, File "/usr/lib/python3/dist-packages/launchpadlib/launchpad.py", line 207, in __init__ super(Launchpad, self).__init__( File "/usr/lib/python3/dist-packages/lazr/restfulclient/resource.py", line 485, in __init__ self._wadl = self._browser.get_wadl_application(self._root_uri) File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 456, in get_wadl_application response, content = self._request(url, media_type=wadl_type) File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 398, in _request response, content = self._request_and_retry( File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 368, in _request_and_retry response, content = self._connection.request( File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1906, in request (response, new_content) = self._request( File "/usr/lib/python3/dist-packages/launchpadlib/launchpad.py", line 135, in _request response, content = super( File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 193, in _request return super(RestfulHttp, self)._request( File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1621, in _request (response, content) = self._conn_request( File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1535, in _conn_request raise ServerNotFoundError("Unable to find the server at %s" % conn.host) httplib2.ServerNotFoundError: Unable to find the server at api.launchpad.net user@ubuntu:~$