我正在尝试在Ubuntu 18.04 according to this tutorial上安装Devstack。我创建了具有以下内容的用户stack和文件local.conf：
[[local|localrc]]
ADMIN_PASSWORD=secret
DATABASE_PASSWORD=$ADMIN_PASSWORD
RABBIT_PASSWORD=$ADMIN_PASSWORD
SERVICE_PASSWORD=$ADMIN_PASSWORD
运行./stack时，出现以下错误：
Collecting alembic===1.4.2
Using cached alembic-1.4.2.tar.gz (1.1 MB)
Installing build dependencies ... error
ERROR: Command errored out with exit status 1:
command: /usr/bin/python3.6 /usr/local/lib/python3.6/dist-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-bgfrloqz/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools>=40.8.0' wheel
cwd: None
Complete output (39 lines):
Traceback (most recent call last):
File "/usr/lib/python3.6/runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/usr/local/lib/python3.6/dist-packages/pip/__main__.py", line 23, in <module>
from pip._internal.cli.main import main as _main # isort:skip # noqa
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/cli/main.py", line 5, in <module>
import locale
File "/usr/lib/python3.6/locale.py", line 16, in <module>
import re
File "/usr/lib/python3.6/re.py", line 142, in <module>
class RegexFlag(enum.IntFlag):
AttributeError: module 'enum' has no attribute 'IntFlag'
Error in sys.excepthook:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 53, in apport_excepthook
if not enabled():
File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 24, in enabled
import re
File "/usr/lib/python3.6/re.py", line 142, in <module>
class RegexFlag(enum.IntFlag):
AttributeError: module 'enum' has no attribute 'IntFlag'
Original exception was:
Traceback (most recent call last):
File "/usr/lib/python3.6/runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/usr/local/lib/python3.6/dist-packages/pip/__main__.py", line 23, in <module>
from pip._internal.cli.main import main as _main # isort:skip # noqa
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/cli/main.py", line 5, in <module>
import locale
File "/usr/lib/python3.6/locale.py", line 16, in <module>
import re
File "/usr/lib/python3.6/re.py", line 142, in <module>
class RegexFlag(enum.IntFlag):
AttributeError: module 'enum' has no attribute 'IntFlag'
----------------------------------------
ERROR: Command errored out with exit status 1: /usr/bin/python3.6 /usr/local/lib/python3.6/dist-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-bgfrloqz/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools>=40.8.0' wheel Check the logs for full command output.
+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 1589211747 60 fail
+./stack.sh:exit_trap:512 [[ -z /opt/stack/logs ]]
+./stack.sh:exit_trap:515 /usr/bin/python3.6 /opt/stack/devstack/tools/worlddump.py -d /opt/stack/logs
World dumping... see /opt/stack/logs/worlddump-2020-05-11-154327.txt for details
+./stack.sh:exit_trap:524 exit 1
缺少什么？
答案 0 :(得分：0)
由于错误与enum Python库（AttributeError: module 'enum' has no attribute 'IntFlag'）有关，所以我遵循Haken-lid中this question的建议，它对我有用：
pip uninstall -y enum34