Jupyter Lab-启动但没有看到任何标签(外观/感觉与youtube视频中的显示100％不同) [英] Jupyter Lab - launches but don't see any tabs (look/feel is 100% different than seen in youtube videos)

问题描述

我在MacOS(10.9.5)上具有jupyter notebook版本4.2

I have jupyter notebook version 4.2 on my MacOS (10.9.5)

我在MacOS终端上通过jupyter lab启动，它会自动通过以下链接打开浏览器:http://localhost:8888/lab

I launch via jupyter lab at the MacOS terminal and it automatically opens a browser at the following link: http://localhost:8888/lab

这时我看到了Welcome to the JupyterLab Alpha preview屏幕，仅此而已.没有标签等.请查看我包含的图像.

At this point I see the Welcome to the JupyterLab Alpha preview screen but nothing more. No tabs etc. Please see the image I have included.

我正在使用Chromium(Version 43.0.2357.130 (64-bit) ).当我尝试在Safari浏览器中打开时，绝对不会加载任何内容.它是空白的浏览器会话.

I am using Chromium (Version 43.0.2357.130 (64-bit) ). When I try to open in Safari browser absolutely nothing loads. Its a blank browser session.

我在浏览器中看到的内容与我在youtube上所有JupyterLab视频(例如PyData 2016 DC)中看到的内容都不一样.

What I see in the browser doesn't look like anything that I have seen in all of the JupyterLab videos on youtube (PyData 2016 DC for example).

很明显，渲染存在问题.

Clearly there is something wrong with the rendering.

更新:

控制台中的输出:

WebSocket connection to 'ws://localhost:8888/terminals/websocket/1' failed: WebSocket is closed before the connection is established.
http://localhost:8888/api/contents/untitled.txt?1485120059877 Failed to load resource: the server responded with a status of 404 (Not Found)
http://localhost:8888/api/contents/DeleteMe.ipynb?1485120060078 Failed to load resource: the server responded with a status of 404 (Not Found)

在MacOS终端中的输出:

Output in the MacOS terminal:

[I 16:20:58.569 LabApp] JupyterLab alpha preview extension loaded from /Users/user1/anaconda/lib/python2.7/site-packages/jupyterlab
[I 16:20:58.570 LabApp] Serving notebooks from local directory: /Users/user1
[I 16:20:58.570 LabApp] 0 active kernels 
[I 16:20:58.570 LabApp] The Jupyter Notebook is running at: http://localhost:8888/
[I 16:20:58.570 LabApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[W 16:20:59.883 LabApp] No such file or directory: untitled.txt
[W 16:20:59.884 LabApp] 404 GET /api/contents/untitled.txt?1485120059877 (::1) 3.88ms referer=http://localhost:8888/lab
[I 16:20:59.893 LabApp] New terminal with specified name: 1
[W 16:21:00.095 LabApp] No such file or directory: DeleteMe.ipynb
[W 16:21:00.098 LabApp] 404 GET /api/contents/DeleteMe.ipynb?1485120060078 (::1) 5.14ms referer=http://localhost:8888/lab
[W 16:22:35.969 LabApp] 404 GET /lab/xterm.js.map (::1) 64.85ms referer=None
[W 16:25:30.075 LabApp] No such file or directory: untitled.txt
[W 16:25:30.076 LabApp] 404 GET /api/contents/untitled.txt?1485120330069 (::1) 1.74ms referer=http://localhost:8888/lab
[W 16:25:30.101 LabApp] 404 GET /lab/xterm.js.map (::1) 3.18ms referer=None
[W 16:25:30.296 LabApp] No such file or directory: DeleteMe.ipynb
[W 16:25:30.297 LabApp] 404 GET /api/contents/DeleteMe.ipynb?1485120330283 (::1) 1.73ms referer=http://localhost:8888/lab

浏览器控制台的输出:

更新:

这是我观看的Jupyter Labs的特定视频:

Here is a specific video of Jupyter Labs I watched:

JupyterLab:构件块...

我看到的与视频中显示的有很大不同. youtube上还有许多其他视频.

What I see is very different than what is shown in the video. There are many other videos on youtube.

更新#2:

我遵循了Feynman27的说明此处，但是我得到了相同的结果.参见屏幕截图.我看到它说的是Click on the Launcher tab for the initial JupyterLab screen，但是我找不到它在哪里.

I followed Feynman27's instructions here however I get the same result. See screen shot. I see where it says, Click on the Launcher tab for the initial JupyterLab screen, however I can't find where that is.

更新#3:

我将浏览器更新为Chromium Version 56.0.2924.87 (64-bit).

现在一切正常.我看到了标签.

Now all works fine. I see the tabs.

推荐答案

我将浏览器更新为Chromium版本56.0.2924.87(64位).以前的版本是Version 43.0.2357.130 (64-bit).

I updated my browser to Chromium Version 56.0.2924.87 (64-bit). The prior version was Version 43.0.2357.130 (64-bit).

在新版本的Chromium上，Jupyter Lab可以正常工作.

On the new version of Chromium, the Jupyter Lab works as expected.

我想回答这个问题，以便所有遇到类似情况的其他用户都有文档资源来查找解决方案.

I wanted to answer this question so any other users who experience something similar have a document resource to find a solution.

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