Mercurial（hg）更新错误，中止：没有这样的文件或目录

我无法在我的机器上更新mercurial repos。我在执行更新时遇到以下错误

hg up--traceback

：

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 87, in _runcatch
    return _dispatch(req)
  File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 679, in _dispatch
    cmdpats, cmdoptions)
  File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 454, in runcommand
    ret = _runcommand(ui, options, cmd, d)
  File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 733, in _runcommand
    return checkargs()
  File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 687, in checkargs
    return cmdfunc()
  File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 676, in <lambda>
    d = lambda: util.checksignature(func)(ui, *args, **cmdoptions)
  File "/usr/lib/python2.7/dist-packages/mercurial/util.py", line 385, in check
    return func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/mercurial/commands.py", line 5131, in update
    ret = hg.update(repo, rev)
  File "/usr/lib/python2.7/dist-packages/mercurial/hg.py", line 395, in update
    stats = mergemod.update(repo, node, False, False, None)
  File "/usr/lib/python2.7/dist-packages/mercurial/merge.py", line 554, in update
    stats = applyupdates(repo, action, wc, p2, pa, overwrite)
  File "/usr/lib/python2.7/dist-packages/mercurial/merge.py", line 329, in applyupdates
    subrepo.submerge(repo, wctx, mctx, wctx.ancestor(mctx), overwrite)
  File "/usr/lib/python2.7/dist-packages/mercurial/subrepo.py", line 156, in submerge
    mctx.sub(s).get(r)
  File "/usr/lib/python2.7/dist-packages/mercurial/subrepo.py", line 668, in get
    if self._svnversion >= (1, 5):
  File "/usr/lib/python2.7/dist-packages/mercurial/util.py", line 169, in __get__
    result = self.func(obj)
  File "/usr/lib/python2.7/dist-packages/mercurial/subrepo.py", line 567, in _svnversion
    output, err = self._svncommand(['--version'], filename=None)
  File "/usr/lib/python2.7/dist-packages/mercurial/subrepo.py", line 555, in _svncommand
    universal_newlines=True, env=env, **extrakw)
  File "/usr/lib/python2.7/subprocess.py", line 679, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1239, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory
abort: No such file or directory

使用trackback，我得到了一个与以前类似的错误。我甚至在没有任何运气的情况下尝试在我的系统上重新安装mercurial

你能指出问题所在吗。回购头似乎正常（我可以在其他机器上克隆和更新），并且我可以在我的系统上克隆或更新其他hg回购。这和次级回购有什么关系吗？回溯说明了这一点

---

我的系统详细信息：32位Ubuntu 11.10，运行mercurial 1.9.1版。

源repo似乎有一个svn子repo，并且您没有安装subversion客户端（或者svn不在搜索路径中）。

这些机器运行的是什么操作系统？您试图克隆到的目录结构有多深？此外，Mercurial用户列表可能是回答此类问题的更好场所：谢谢Laurens，这是我的系统配置：32位Ubuntu 11.10，运行Mercurial 1.9.1。我不知道dir结构的深度，但我可以想象它小于15。我也会在hg邮件列表中发布。谢谢！你是对的！我只需要安装svn。再次感谢。你应该在Mercurial bug tracker中对此进行登记！这个错误可以处理得更好。它刚修好。Mercurial 2.0应该有一条更好的错误消息。哇，Laurens，谢谢，我刚刚看到这条消息，很抱歉没有这么做。但是，感谢您承担责任。如果存在git subrepo并且没有安装git，那么Mercurial 2.1.1也会有同样的问题。

destination directory: foo
requesting all changes
adding changesets
adding manifests
adding file changes
added 6270 changesets with 20990 changes to 3682 files
updating to branch default
abort: No such file or directory