jupyter-notebook - Jupyter 可配置的 nbextensions 列表为空

Question

我安装了 conda install -c conda-forge jupyter_nbextensions_configurator然后跑 jupyter nbextensions_configurator enable --user在我的 venv 中，但 nbextensions 菜单是空的。我已经重新启动笔记本几次，没有运气。如何让菜单显示出来，以便我可以单击并选择 TOC 等？
系统详情:
视窗 10，火狐
conda 4.8.2
python 3.8.3
jupyter 1.0.0 pypi_0 pypi
jupyter_client 6.1.3 py_0 conda-forge
jupyter_console 6.1.0 py_1 conda-forge
jupyter_contrib_core 0.3.3 py_2 conda-forge
jupyter_core 4.6.3 py38h32f6830_1 conda-forge
jupyter_nbextensions_configurator 0.4.1 py38_0 conda-forge

(myenv) C:\path>jupyter nbextension list
Known nbextensions:
  config dir: C:\path\.jupyter\nbconfig
    notebook section
      nbextensions_configurator/config_menu/main enabled
      - Validating: problems found:
        - require?  X nbextensions_configurator/config_menu/main
      jupyter-js-widgets/extension disabled
      jupyter-vega/index disabled
    tree section
      nbextensions_configurator/tree_tab/main enabled
      - Validating: problems found:
        - require?  X nbextensions_configurator/tree_tab/main
  config dir: C:\path\anaconda3\envs\myenv\etc\jupyter\nbconfig
    notebook section
      jupyter-js-widgets/extension enabled
      - Validating: ok
      jupyter-vega/index enabled
      - Validating: problems found:
        - require?  X jupyter-vega/index
      nbextensions_configurator/config_menu/main enabled
      - Validating: problems found:
        - require?  X nbextensions_configurator/config_menu/main
    tree section
      nbextensions_configurator/tree_tab/main enabled
      - Validating: problems found:
        - require?  X nbextensions_configurator/tree_tab/main

Answer 1

我找到了答案 here , 在 Github 上的一个公开问题中
我在 Anaconda 提示符下运行了以下命令:

conda install -c conda-forge jupyter_contrib_nbextensions
jupyter nbextensions_configurator enable --user

(注意 conda install -c conda-forge jupyter_nbextensions_configurator 已经在提示中运行了)
然后启动 notebook 并且扩展可用: