我安装 devstack，总是抱着个错，请问怎么解决

Collecting uwsgi
  Could not find a version that satisfies the requirement uwsgi (from versions:)
No matching distribution found for uwsgi
+lib/apache:install_apache_uwsgi:1       exit_trap
+./stack.sh:exit_trap:521                local r=1
++./stack.sh:exit_trap:522                jobs -p
+./stack.sh:exit_trap:522                jobs=
+./stack.sh:exit_trap:525                [[ -n '' ]]
+./stack.sh:exit_trap:531                '[' -f '' ']'
+./stack.sh:exit_trap:536                kill_spinner
+./stack.sh:kill_spinner:417             '[' '!' -z '' ']'
+./stack.sh:exit_trap:538                [[ 1 -ne 0 ]]
+./stack.sh:exit_trap:539                echo 'Error on exit'
Error on exit
+./stack.sh:exit_trap:540                generate-subunit 1501659583 159 fail
+./stack.sh:exit_trap:541                [[ -z /opt/stack/logs ]]
+./stack.sh:exit_trap:544                /opt/stack/devstack/tools/worlddump.py -d /opt/stack/logs
World dumping... see /opt/stack/logs/worlddump-2017-08-02-074223.txt for details
+./stack.sh:exit_trap:550                exit 1

请问怎么解决