Hi Team, I'm trying to install a devstack on a ubuntu 18.04 VM having python 3.6.9 but getting below error. Any suggestions? python - 3.6.9 stack user with sudo access. pip version - pip 20.2.4 from /usr/local/lib/python3.6/dist-packages/pip (python 3.6) https://stackoverflow.com/questions/64989221/xdg-session-type-error-on-devst... NFO keystone.cmd.bootstrap [None req-f46e9c41-1b14-4e5b-82b2-ada81e8b0dcd None None] Created region RegionOne INFO keystone.cmd.bootstrap [None req-f46e9c41-1b14-4e5b-82b2-ada81e8b0dcd None None] Created public endpoint http://10.61.62.241/identity INFO keystone.cmd.bootstrap [None req-f46e9c41-1b14-4e5b-82b2-ada81e8b0dcd None None] Created admin endpoint http://10.61.62.241/identity +./stack.sh:main:1084 create_keystone_accounts +lib/keystone:create_keystone_accounts:314 local admin_project ++lib/keystone:create_keystone_accounts:315 oscwrap project show admin -f value -c id Traceback (most recent call last): File "/usr/local/bin/openstack", line 5, in <module> from openstackclient.shell import main File "/usr/local/lib/python3.6/dist-packages/openstackclient/shell.py", line 24, in <module> from osc_lib import shell File "/usr/local/lib/python3.6/dist-packages/osc_lib/shell.py", line 24, in <module> from cliff import app File "/usr/local/lib/python3.6/dist-packages/cliff/app.py", line 24, in <module> import cmd2 File "/usr/local/lib/python3.6/dist-packages/cmd2/__init__.py", line 30, in <module> from .cmd2 import Cmd File "/usr/local/lib/python3.6/dist-packages/cmd2/cmd2.py", line 48, in <module> from .clipboard import can_clip, get_paste_buffer, write_to_paste_buffer File "/usr/local/lib/python3.6/dist-packages/cmd2/clipboard.py", line 12, in <module> _ = pyperclip.paste() File "/usr/local/lib/python3.6/dist-packages/pyperclip/__init__.py", line 680, in lazy_load_stub_paste copy, paste = determine_clipboard() File "/usr/local/lib/python3.6/dist-packages/pyperclip/__init__.py", line 568, in determine_clipboard os.environ["XDG_SESSION_TYPE"] == "wayland" and File "/usr/lib/python3.6/os.py", line 669, in __getitem__ raise KeyError(key) from None KeyError: 'XDG_SESSION_TYPE' ++functions-common:oscwrap:2346 return 1 +lib/keystone:create_keystone_accounts:315 admin_project= +lib/keystone:create_keystone_accounts:1 exit_trap +./stack.sh:exit_trap:491 local r=1 ++./stack.sh:exit_trap:492 jobs -p +./stack.sh:exit_trap:492 jobs= +./stack.sh:exit_trap:495 [[ -n '' ]] +./stack.sh:exit_trap:501 '[' -f /tmp/tmp.LRWsRkTTkV ']' +./stack.sh:exit_trap:502 rm /tmp/tmp.LRWsRkTTkV +./stack.sh:exit_trap:506 kill_spinner +./stack.sh:kill_spinner:401 '[' '!' -z '' ']' +./stack.sh:exit_trap:508 [[ 1 -ne 0 ]] +./stack.sh:exit_trap:509 echo 'Error on exit' Error on exit +./stack.sh:exit_trap:511 type -p generate-subunit +./stack.sh:exit_trap:512 generate-subunit 1606228299 592 fail +./stack.sh:exit_trap:514 [[ -z /opt/stack/logs ]] +./stack.sh:exit_trap:517 /usr/bin/python3.6 /opt/stack/devstack/tools/worlddump.py -d /opt/stack/logs +./stack.sh:exit_trap:526 exit 1