Plone 尝试安装ZRS时未找到DistributionNotFound

我有一个Plone 4.2.5的站点，我想在其中安装ZRS

我将

[zrs]

额外添加到

zeoserver

部分：

[zeoserver]
recipe = plone.recipe.zeoserver[zrs]

我还锁定了正确版本的配方和相关包：

[versions]
plone.recipe.zeoserver = 1.2.8
plone.recipe.zope2instance = 4.2.18
Twisted = 15.4.0
zc.zrs = 2.4.4

但是，当我运行buildout时，会出现以下错误：

$ bin/buildout
...
While:
  Installing.

An internal error occurred due to a bug in either zc.buildout or in a
recipe being used:
Traceback (most recent call last):
  File "/home/plone/my.project/eggs/zc.buildout-2.4.3-py2.7.egg/zc/buildout/buildout.py", line 1992, in main
    getattr(buildout, command)(args)
  File "/home/plone/my.project/eggs/zc.buildout-2.4.3-py2.7.egg/zc/buildout/buildout.py", line 565, in install
    self._compute_part_signatures(install_parts)
  File "/home/plone/my.project/eggs/zc.buildout-2.4.3-py2.7.egg/zc/buildout/buildout.py", line 810, in _compute_part_signatures
    sig = _dists_sig(pkg_resources.working_set.resolve([req]))
  File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 839, in resolve
    raise DistributionNotFound(req, requirers)
DistributionNotFound: The 'zc.zrs' distribution was not found and is required by plone.recipe.zeoserver

同样的东西在Plone 4.3中运行良好

我也在使用以下版本：

[versions]
setuptools = 18.3.2
zc.buildout = 2.4.3

有什么提示吗？

您需要在“鸡蛋”部分添加“plone.recipe.zeoserver[zrs]”

---

有关主/从设置的示例，请参阅。

我仍然会遇到相同的错误，您确定这适用于Plone 4.2吗？该包的文档提到了Plone 4.3.1。我刚刚试过Plone 4.3。您是否尝试过签出回购协议并使用Plone 4.2.x运行它？事实上，它在Plone 4.2中也起作用，顺便说一句，也没有必要将这些鸡蛋添加到

鸡蛋
部分；我认为我的问题不同，它似乎与setuptools或zc.buildout版本有关。