Devstack 安装失败并显示错误消息“错误：不允许将可编辑的要求作为约束”

如何解决Devstack 安装失败并显示错误消息“错误：不允许将可编辑的要求作为约束”

运行脚本stack.sh时遇到如下错误：

Using python 3.6 to install setuptools!=24.0.0,!=34.0.0,!=34.0.1,!=34.0.2,!=34.0.3,!=34.1.0,!=34.1.1,!=34.2.0,!=34.3.0,!=34.3.1,!=34.3.2,!=36.2.0,!=48.0.0,!=49.0.0
+ inc/python:pip_install:187               :   sudo -H LC_ALL=en_US.UTF-8 http_proxy= https_proxy= no_proxy= PIP_FIND_LINKS= SETUPTOOLS_SYS_PATH_TECHNIQUE=rewrite python3.6 -m pip install -c /opt/stack/requirements/upper-constraints.txt --ignore-installed 'setuptools!=24.0.0,!=49.0.0'
DEPRECATION: Constraints are only allowed to take the form of a package name and a version specifier. Other forms were originally permitted as an accident of the implementation,but were undocumented. The new implementation of the resolver no longer supports these forms. A possible replacement is replacing the constraint with a requirement.. You can find discussion regarding this at https://github.com/pypa/pip/issues/8210.
ERROR: Editable requirements are not allowed as constraints
++./stack.sh:main:752                       err_trap
++./stack.sh:err_trap:530                   local r=1
stack.sh Failed: full log in /opt/stack/logs/stack.sh.log.2021-05-10-115040
Error on exit

再高一点我有这个警告：

  Attempting uninstall: pip
    Found existing installation: pip 21.1.1
    Uninstalling pip-21.1.1:
      Successfully uninstalled pip-21.1.1
Successfully installed pip-21.1.1
WARNING: Running pip as root will break packages and permissions. You
should install packages reliably by using venv:
https://pip.pypa.io/warnings/venv

知道为什么吗？ 谢谢