hi guys£º
      I met some problems in installing devstack . the details please refers to "Errors" listed as below.     The environment: 1) Win 10 ; 2) VMware workstation ;3) ubuntu-18.04.5-desktop-amd64;4)devstack
         The installation processes refer to the devstack quick start (https://docs.openstack.org/devstack/latest/) Could you give me the solution to solve the problem.

Error :

Installing collected packages: oslo.rootwrap, retrying, os-win, oslo.privsep, os-brick, simplejson, python-cinderclient, glance-store
  Attempting uninstall: simplejson
    Found existing installation: simplejson 3.13.2
ERROR: Cannot uninstall 'simplejson'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.
+inc/python:pip_install:1                  exit_trap
+./stack.sh:exit_trap:489                  local r=1
++./stack.sh:exit_trap:490                  jobs -p
+./stack.sh:exit_trap:490                  jobs=
+./stack.sh:exit_trap:493                  [[ -n '' ]]
+./stack.sh:exit_trap:499                  '[' -f '' ']'
+./stack.sh:exit_trap:504                  kill_spinner
+./stack.sh:kill_spinner:399               '[' '!' -z '' ']'
+./stack.sh:exit_trap:506                  [[ 1 -ne 0 ]]
+./stack.sh:exit_trap:507                  echo 'Error on exit'
Error on exit
+./stack.sh:exit_trap:509                  type -p generate-subunit
+./stack.sh:exit_trap:510                  generate-subunit 1589476087 780 fail
+./stack.sh:exit_trap:512                  [[ -z /opt/stack/logs ]]
+./stack.sh:exit_trap ...