Config value: 'markdown_extensions'. Error: Failed loading extension "toc(permalink=true)"

[geneorama]

Error when running mkdocs serve

$ mkdocs serve
INFO    -  Building documentation... 
WARNING -  Config value: 'site_favicon'. Warning: Unrecognised configuration name: site_favicon 
WARNING -  Config value: 'theme_dir'. Warning: Unrecognised configuration name: theme_dir 
ERROR   -  Config value: 'markdown_extensions'. Error: Failed loading extension "toc(permalink=true)". 

Aborted with 1 Configuration Errors!

Judging from the name of the extension, this could be causing the issue in dev.cityofchicago.org that prevents navigation to docs pages from any page (number 88).

[geneorama]

Note, I was unable to link directly to the other issue when creating this issue, GitHub took me to a 404 page.

Chicago/dev.cityofchicago.org#88