如何消除Python Jupyter笔记本错误：404 get/nbextensions/nbextensions_configurator/tree_tab/main.js

Question

Sys: Macbook 2012
Python: Python 3.5.1 :: Continuum Analytics, Inc.
Anaconda: conda 4.2.13

我在Jupyter笔记本中使用笔记本扩展（nbextensions）时遇到问题，不知道如何解决问题。我最终还是想使用nbextensions，尽管安装和重新安装了好几次（使用pip和/或conda）并完全删除和重新安装了anaconda，但它并没有显示在我的Jupyter笔记本工具栏上。确切的症状，与一个链接的日志跟踪。

我的错误消息：404 GET/nbextensions/nbextensions_configurator/tree_tab/main.js

目标：我只想再次使用笔记本扩展：-（

交响乐小结

• 我不能用笔记本扩展。按钮没有出现在我的 当我试图使用conda packages时 分机，我收到一个错误。（以下屏幕截图）
• 我有多个nbextension文件夹；不确定是否应该删除 某物（以下截图）
• 我试图完全删除我的anaconda安装并重新安装； 没有工作尝试pip卸载jupyter和conda删除 但没有改变这个问题
• jupyter_path有几个不同的路径作为输出。我不确定 如果这是个问题，但也许是。我不知道该删除什么

以下是详细信息和屏幕截图；如有任何帮助，敬请谅解

我把我的log file from launching jupyter notebook with debug here

以下是我对jupyter_path的输出：

>>> from jupyter_core.paths import jupyter_path
>>> print(jupyter_path())
['/Users/linwood/Library/Jupyter', '/Users/linwood/anaconda3/share/jupyter', '/usr/local/share/jupyter', '/usr/share/jupyter']

如果这有帮助的话，下面是我不在环境中时使用的jupyter：

$ which jupyter
/Users/linwood/anaconda3/bin/jupyter

现在屏幕截图：

多个nbextension文件夹

conda包错误

Jupyter路径打印输出

编辑

根据请求，javascript控制台日志。如果这是错误的，我很抱歉，但是我使用Chrome浏览器的“开发工具”控制台记录了页面重新加载时的javascript活动。以下是相关信息（以下也是错误图片）：

2. Network(X) Basics (Student).ipynb:119 loaded custom.js
default.js:48 Default extension for cell metadata editing loaded.
rawcell.js:82 Raw Cell Format toolbar preset loaded.
slideshow.js:43 Slideshow extension for metadata editing loaded.
menubar.js:240 actions jupyter-notebook:find-and-replace does not exist, still binding it in case it will be defined later...
MenuBar.bind_events @ menubar.js:240
MenuBar @ menubar.js:55
(anonymous) @ main.js:102
execCb @ require.js?v=6da8be3…:1690
check @ require.js?v=6da8be3…:865
(anonymous) @ require.js?v=6da8be3…:1140
(anonymous) @ require.js?v=6da8be3…:131
(anonymous) @ require.js?v=6da8be3…:1190
each @ require.js?v=6da8be3…:56
emit @ require.js?v=6da8be3…:1189
check @ require.js?v=6da8be3…:940
(anonymous) @ require.js?v=6da8be3…:1140
(anonymous) @ require.js?v=6da8be3…:131
(anonymous) @ require.js?v=6da8be3…:1190
each @ require.js?v=6da8be3…:56
emit @ require.js?v=6da8be3…:1189
check @ require.js?v=6da8be3…:940
enable @ require.js?v=6da8be3…:1177
init @ require.js?v=6da8be3…:783
callGetModule @ require.js?v=6da8be3…:1204
completeLoad @ require.js?v=6da8be3…:1604
onScriptLoad @ require.js?v=6da8be3…:1711
utils.js:59 load_extensions ["nbpresent/js/nbpresent.min", "nb_conda/main", "nb_anacondacloud/main", "jupyter-js-widgets/extension"]
utils.js:36 Loading extension: nbpresent/js/nbpresent.min
utils.js:36 Loading extension: nb_anacondacloud/main
require.js?v=6da8be3…:1952 GET http://localhost:8888/nbextensions/nbpresent/js/nbpresent.deps.min.js.js 
req.load @ require.js?v=6da8be3…:1952
load @ require.js?v=6da8be3…:1679
load @ require.js?v=6da8be3…:829
fetch @ require.js?v=6da8be3…:819
check @ require.js?v=6da8be3…:851
enable @ require.js?v=6da8be3…:1177
enable @ require.js?v=6da8be3…:1550
(anonymous) @ require.js?v=6da8be3…:1162
(anonymous) @ require.js?v=6da8be3…:131
each @ require.js?v=6da8be3…:56
enable @ require.js?v=6da8be3…:1114
init @ require.js?v=6da8be3…:783
(anonymous) @ require.js?v=6da8be3…:1453
require.js?v=6da8be3…:165 Uncaught Error: Script error for "nbpresent-deps"
http://requirejs.org/docs/errors.html#scripterror
    at makeError (require.js?v=6da8be3…:165)
    at HTMLScriptElement.onScriptError (require.js?v=6da8be3…:1732)
makeError @ require.js?v=6da8be3…:165
onScriptError @ require.js?v=6da8be3…:1732
session.js:54 Session: kernel_created (ac540fe3-f39d-4a3d-80c5-265638fb8811)
kernel.js:453 Starting WebSockets: ws://localhost:8888/api/kernels/445b6828-66f3-4312-a79f-3c4473345579
kernel.js:100 Kernel: kernel_connected (445b6828-66f3-4312-a79f-3c4473345579)
kernel.js:100 Kernel: kernel_ready (445b6828-66f3-4312-a79f-3c4473345579)
utils.js:36 Loading extension: nb_conda/main
utils.js:36 Loading extension: jupyter-js-widgets/extension
extension.js:88 loaded widgets
manager-base.js:195 Widget backend and frontend versions are compatible