Comment 19 for bug 1068493

You are right. It fails to build, but I get a different error this time:

sphinx-build -Dlanguage=es -b latex -d _build/doctrees . _build/latex/es
Making output directory...
Running Sphinx v1.1.3
loading translations [es]... done
loading pickled environment... not yet created
building [latex]: all documents
updating environment: 25 added, 0 changed, 0 removed
reading sources... [ 4%] ubuntu-packaging-guide/auto-pkg-test
reading sources... [ 8%] ubuntu-packaging-guide/backports
reading sources... [ 12%] ubuntu-packaging-guide/chroots
reading sources... [ 16%] ubuntu-packaging-guide/communication
reading sources... [ 20%] ubuntu-packaging-guide/debian-dir-overview
reading sources... [ 24%] ubuntu-packaging-guide/fixing-a-bug
reading sources... [ 28%] ubuntu-packaging-guide/fixing-a-bug-example
reading sources... [ 32%] ubuntu-packaging-guide/getting-set-up

Exception occurred:
  File "/usr/lib/python2.7/dist-packages/sphinx/application.py", line 204, in build
    self.builder.build_update()
  File "/usr/lib/python2.7/dist-packages/sphinx/builders/__init__.py", line 191, in build_update
    self.build(['__all__'], to_build)
  File "/usr/lib/python2.7/dist-packages/sphinx/builders/__init__.py", line 216, in build
    purple, length):
  File "/usr/lib/python2.7/dist-packages/sphinx/builders/__init__.py", line 120, in status_iterator
    for item in iterable:
  File "/usr/lib/python2.7/dist-packages/sphinx/environment.py", line 617, in update_generator
    self.read_doc(docname, app=app)
  File "/usr/lib/python2.7/dist-packages/sphinx/environment.py", line 765, in read_doc
    pub.publish()
  File "/usr/lib/python2.7/dist-packages/docutils/core.py", line 212, in publish
    self.apply_transforms()
  File "/usr/lib/python2.7/dist-packages/docutils/core.py", line 193, in apply_transforms
    self.document.transformer.apply_transforms()
  File "/usr/lib/python2.7/dist-packages/docutils/transforms/__init__.py", line 171, in apply_transforms
    transform.apply(**kwargs)
  File "/usr/lib/python2.7/dist-packages/sphinx/environment.py", line 232, in apply
    node.children[i] = child
IndexError: list assignment index out of range
The full traceback has been saved in /tmp/sphinx-err-FcOJkS.log, if you want to report the issue to the developers.
Please also report this if it was a user error, so that a better error message can be provided next time.
Either send bugs to the mailing list at <http://groups.google.com/group/sphinx-dev/>,
or report them in the tracker at <http://bitbucket.org/birkenfeld/sphinx/issues/>. Thanks!
make[2]: *** [latexpdf-es] Fehler 1