Error
{#
I'd like to use ``build.error|urlize`` here, so we can have nice links.
However, this is not possible because we are using `data-bind="text: error"`
which means that Knockout.js will use the `.error` attribute to fill
the content of this tag dynamically.
#}
Command /home/docs/checkouts/readthedocs.org/user_builds/isobar/envs/latest/bin/python -m mkdocs build --clean --site-dir _build/html --config-file mkdocs.yml failed:
[31mERROR - [0mConfig value: 'theme'. Error: Unrecognised theme name: 'material'. The available installed themes are: mkdocs, readthedocs
[31mERROR - [0mConfig value: 'markdown_extensions'. Error: Failed loading extension "pymdownx.tabbed".
Aborted with 2 Configuration Errors!