Runtime Error: Non Expected warning in anova.rst file in Statsmodel docs #11963

[capac]

Adding the :okwarning: to the block then produces this error output:

Exception occurred:
  File "/Users/angelo/.conda/envs/docs/lib/python3.7/site-packages/IPython/sphinxext/ipython_directive.py", line 1021, in run
    raise RuntimeError(message)
RuntimeError: Code input with no code at /Users/angelo/Programming/Python/statsmodels/docs/source/anova.rst, line None
The full traceback has been saved in /var/folders/zs/kmwpnb1n01ddcd5ftkqtctp40000gn/T/sphinx-err-tccr40s7.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.
A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks!
make: *** [Makefile:54: html] Error 2

The log file output is below.
sphinx-err-tccr40s7.log

Originally posted by @capac in #11963 (comment)

[khider]

Getting the same error. How was this fixed?