## 事象
以下のコマンドを実行するとエラーになる。
```console
poetry run mkdocs build
```
エラー内容。
```error
ERROR - Config value 'markdown_extensions': Failed to load extension 'fontawesome_markdown'.
File "C:\Users\syoum\git\github.com\tadashi-aikawa\jumeaux\.venv\Lib\site-packages\fontawesome_markdown\__init__.py", line 1, in <module>
from .main import FontAwesomePattern, FontAwesomeExtension, FontAwesomeException, makeExtension # NOQA
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\syoum\git\github.com\tadashi-aikawa\jumeaux\.venv\Lib\site-packages\fontawesome_markdown\main.py", line 4, in <module>
from markdown.util import etree
ImportError: cannot import name 'etree' from 'markdown.util' (C:\Users\syoum\git\github.com\tadashi-aikawa\jumeaux\.venv\Lib\site-packages\markdown\util.py)
Aborted with 1 configuration errors!
make: *** [Makefile:52: package-docs] Error 1
```
関係ありそうな依存関係のバージョン。
```console
fontawesome-markdown 0.2.6 Font Awesome support for Markdown
mkdocs 1.5.1 Project documentation with Markdown.
mkdocs-material 6.2.8 A Material Design theme for MkDocs
mkdocs-material-extensions 1.1.1 Extension pack for Python Markdown and MkDocs Material.
```
## 原因
[[fontawesome-markdown]]のサポートをしなくなった?
<div class="link-card-v2">
<div class="link-card-v2-site">
<img class="link-card-v2-site-icon" src="https://github.githubassets.com/favicons/favicon.svg" />
<span class="link-card-v2-site-name">GitHub</span>
</div>
<div class="link-card-v2-title">
ERROR - Config value: 'markdown_extensions'. Error: Failed loading extension "fontawesome_markdown" · Issue #2074 · mkdocs/mkdocs
</div>
<div class="link-card-v2-content">
Im trying to get an existing project working on my pc. So I have installed and updated everything, and also inst ...
</div>
<img class="link-card-v2-image" src="https://opengraph.githubassets.com/8a4362512c6c1f2bd77cdfd14334935f9fa9e224ab3a9af09d30b9bd3d988b86/mkdocs/mkdocs/issues/2074" />
<a href="https://github.com/mkdocs/mkdocs/issues/2074"></a>
</div>
> Material just decided to remove support and then added it completly differently again... so yeah guess i dont need this anymore
## 解決方法
インストールしなおすしかなさそう。。