Hi,

when compiling my project documentation I get the following error:

preparing documents... done
writing output... [ 27%] my_project/pageA
Exception occurred:
  File "/home/.../build/lib/python/Sphinx-1.1.2-py3.2.egg/sphinx/util/
png.py", line 54, in write_png_depth
    f.write(struct.pack('!i', binascii.crc32(DEPTH_CHUNK_START +
data)))
struct.error: 'i' format requires -2147483648 <= number <= 2147483647
The full traceback has been saved in /tmp/sphinx-err-ea_gck.log, if
you want to report the issue to the developers.

Any ideas what the problem can be? How can I debug this? Is it a bug
or problem with my input (it is not related to the file mentioned
right before, as I tried uncommenting that one..). Any and all help is
greatly appreciated. Thanks and best, Paul

P.S.: the log file in /tmp/ reads:

# Sphinx version: 1.1.2
# Python version: 3.2.2
# Docutils version: 0.8.1 release
# Jinja2 version: 2.6
Traceback (most recent call last):
  File "/home/.../build/lib/python/Sphinx-1.1.2-py3.2.egg/sphinx/
cmdline.py", line 189, in main
    app.build(force_all, filenames)
  File "/home/.../build/lib/python/Sphinx-1.1.2-py3.2.egg/sphinx/
application.py", line 204, in build
    self.builder.build_update()
  File "/home/.../build/lib/python/Sphinx-1.1.2-py3.2.egg/sphinx/
builders/__init__.py", line 196, in build_update
    'out of date' % len(to_build))
  File "/home/.../build/lib/python/Sphinx-1.1.2-py3.2.egg/sphinx/
builders/__init__.py", line 252, in build
    self.write(docnames, list(updated_docnames), method)
  File "/home/.../build/lib/python/Sphinx-1.1.2-py3.2.egg/sphinx/
builders/__init__.py", line 292, in write
    self.write_doc(docname, doctree)
  File "/home/.../build/lib/python/Sphinx-1.1.2-py3.2.egg/sphinx/
builders/html.py", line 419, in write_doc
    self.docwriter.write(doctree, destination)
  File "/home/.../build/lib/python/docutils-0.8.1-py3.2.egg/docutils/
writers/__init__.py", line 77, in write
    self.translate()
  File "/home/.../build/lib/python/Sphinx-1.1.2-py3.2.egg/sphinx/
writers/html.py", line 38, in translate
    self.document.walkabout(visitor)
  File "/home/.../build/lib/python/docutils-0.8.1-py3.2.egg/docutils/
nodes.py", line 173, in walkabout
    if child.walkabout(visitor):
  File "/home/.../build/lib/python/docutils-0.8.1-py3.2.egg/docutils/
nodes.py", line 173, in walkabout
    if child.walkabout(visitor):
  File "/home/.../build/lib/python/docutils-0.8.1-py3.2.egg/docutils/
nodes.py", line 173, in walkabout
    if child.walkabout(visitor):
  File "/home/.../build/lib/python/docutils-0.8.1-py3.2.egg/docutils/
nodes.py", line 165, in walkabout
    visitor.dispatch_visit(self)
  File "/home/.../build/lib/python/docutils-0.8.1-py3.2.egg/docutils/
nodes.py", line 1604, in dispatch_visit
    return method(node)
  File "/home/.../build/lib/python/Sphinx-1.1.2-py3.2.egg/sphinx/ext/
pngmath.py", line 213, in html_visit_displaymath
    fname, depth = render_math(self, latex)
  File "/home/.../build/lib/python/Sphinx-1.1.2-py3.2.egg/sphinx/ext/
pngmath.py", line 166, in render_math
    write_png_depth(outfn, depth)
  File "/home/.../build/lib/python/Sphinx-1.1.2-py3.2.egg/sphinx/util/
png.py", line 54, in write_png_depth
    f.write(struct.pack('!i', binascii.crc32(DEPTH_CHUNK_START +
data)))
struct.error: 'i' format requires -2147483648 <= number <= 2147483647

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