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Hi Dan,
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<div class="">There is a bug in<a href="https://github.com/sphinx-doc/sphinx/issues/5048" class=""> Sphinx 1.7.5</a> that is causing the docs builds to fail. You can see that this is also affecting the continuous integration tests on Travis - <a href="https://travis-ci.org/MITgcm/MITgcm/jobs/394922177" class="">https://travis-ci.org/MITgcm/MITgcm/jobs/394922177</a></div>
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<div class="">Manually setting a different version of Sphinx should fix this problem.</div>
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<div class="">Cheers,</div>
<div class="">Ed</div>
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<span class="Apple-style-span" style="font-variant-ligatures: normal; font-variant-position: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; line-height: normal; border-collapse: separate; border-spacing: 0px;"><br class="Apple-interchange-newline">
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<span class="Apple-style-span" style="font-family: Tahoma; font-size: 13px;"><font face="Tahoma" size="2" class=""><span dir="ltr" style="font-size: 10pt;" class=""><font size="1" class=""><span style="font-size: 13px;" class=""><font size="2" class=""><b class="">Edward
 Doddridge</b><br class="">
<i class="">Postdoctoral researcher</i></font></span></font></span></font></span></span></div>
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<span class="Apple-style-span" style="font-variant-ligatures: normal; font-variant-position: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; line-height: normal; border-collapse: separate; border-spacing: 0px;"><span class="Apple-style-span" style="font-family: Tahoma; font-size: 13px;"><font face="Tahoma" size="2" class=""><span dir="ltr" style="font-size: 10pt;" class=""><font size="1" class=""><span style="font-size: 13px;" class=""><font size="2" class=""><i class="">Earth,
 Atmospheric and Planetary Sciences</i></font></span></font></span></font></span></span></div>
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<span class="Apple-style-span" style="font-variant-ligatures: normal; font-variant-position: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; line-height: normal; border-collapse: separate; border-spacing: 0px;"><span class="Apple-style-span" style="font-family: Tahoma; font-size: 13px;"><font face="Tahoma" size="2" class=""><span dir="ltr" style="font-size: 10pt;" class=""><font size="1" class=""><span style="font-size: 13px;" class=""><font size="2" class=""><i class="">Massachusetts
 Institute of Technology</i></font></span></font></span></font></span></span></div>
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</i></font></span></font></span></font></span></span></div>
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<span class="Apple-style-span" style="border-collapse: separate; font-variant-ligatures: normal; font-variant-position: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; widows: 2; border-spacing: 0px;"><span class="Apple-style-span" style="font-family: Tahoma; font-size: 13px;"><font face="Tahoma" size="2" class=""><a href="http://www.doddridge.me" class="">www.doddridge.me</a></font></span></span></div>
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<div class="">On 21 Jun 2018, at 21:47, Daniel Goldberg <<a href="mailto:dan.goldberg@ed.ac.uk" class="">dan.goldberg@ed.ac.uk</a>> wrote:</div>
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<div dir="ltr" class="">Hello All
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<div class="">I am in the process of writing documentation for a physical package, and have installed the required libs following the instructions here:</div>
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<div class=""><a href="https://mitgcm.readthedocs.io/en/latest/contributing/contributing.html#building-the-manual" class="">https://mitgcm.readthedocs.io/en/latest/contributing/contributing.html#building-the-manual</a></div>
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<div class="">however, on calling "make html" in the MITgcm/doc directory, i received the following errors (see attached log):</div>
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<div class="">Exception occurred:</div>
<div class="">  File "/disk/scratch/local.2/fenics/miniconda3/lib/python3.6/site-packages/sphinx/environment/collector                                                                                s/toctree.py", line 172, in _walk_toc</div>
<div class="">    subnode[0]['secnumber'] = list(number)</div>
<div class="">TypeError: 'NoneType' object is not iterable</div>
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<div class="">There are continually python issues with my school's IT infrastructure but I thought that using miniconda would take care of this?</div>
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<div class="">Is there another way of testing whether the libraries have installed correctly other than the test i have just done? (is the html generator run overnight?)</div>
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<div class="">Thanks</div>
<div class="">Dan</div>
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-- <br class="">
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<span style="font-size:12.8px" class="">Daniel Goldberg, PhD</span><br style="font-size:12.8px" class="">
<span style="font-size:12.8px" class="">Lecturer in Glaciology</span>
<div style="font-size:12.8px" class="">School of Geosciences, University of Edinburgh<br class="">
<span style="font-family: arial, helvetica, clean, sans-serif; line-height: 15px;" class="">Geography Building, Drummond Street, Edinburgh EH8 9XP</span><br class="">
<br class="">
<br class="">
em: <a href="mailto:dgoldber@mit.edu" target="_blank" class="">D</a><a href="mailto:an.Goldberg@ed.ac.uk" target="_blank" class="">an.Goldberg@ed.ac.uk</a><br class="">
web: <a href="https://www.geos.ed.ac.uk/homes/dgoldber" target="_blank" class="">https://www.geos.ed.ac.uk/homes/dgoldber</a></div>
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<span id="cid:714BEEB1-B5D2-46C8-B246-82D6B69BAEE8"><sphinx-err-8lq_htha.log></span>The University of Edinburgh is a charitable body, registered in<br class="">
Scotland, with registration number SC005336.<br class="">
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