Anaconda安装后Jupyter启动异常及默认浏览器修改问题咨询

Hey there, let's work through these two Jupyter issues you're hitting after reinstalling Anaconda—they're both straightforward fixes, so let's dive in!

问题1：启动链接显示http://localhost:8892/undefined/tree #

This usually happens when Jupyter can't locate its default notebook directory, or your config file got corrupted during the reinstall. Here's how to fix it:

• First, generate a fresh config file (or reset your existing one): Open Anaconda Prompt (or terminal on Mac/Linux) and run:

  jupyter notebook --generate-config
  

  If prompted to overwrite an existing config, type y and hit enter.
• Find the config file: It’s saved at C:\Users\YourUsername\.jupyter\jupyter_notebook_config.py (Windows) or ~/.jupyter/jupyter_notebook_config.py (Mac/Linux).
• Open the file with a text editor (like VS Code or Notepad) and search for the line starting with #c.NotebookApp.notebook_dir.
  • Remove the # to uncomment it, then set it to a valid, existing folder path on your computer. For example (Windows):

    c.NotebookApp.notebook_dir = 'C:\\Users\\YourUsername\\Documents\\Jupyter_Notebooks'
    

    Use double backslashes (\\) for Windows paths, or single forward slashes (/) for Mac/Linux.
• Save the config file, close it, then restart Jupyter Notebook. The undefined should disappear from your launch link.

问题2：将默认浏览器从Internet Explorer改为Google Chrome #

You can set this directly in the same Jupyter config file:

• Open the jupyter_notebook_config.py file again and search for #c.NotebookApp.browser.
• Uncomment the line and set it to Chrome's executable path, followed by %s (this tells Jupyter to pass the launch URL to Chrome).
  • For Windows (check if Chrome is in Program Files or Program Files (x86)):

    c.NotebookApp.browser = 'C:/Program Files/Google/Chrome/Application/chrome.exe %s'
    

  • For Mac:

    c.NotebookApp.browser = 'open -a Google\\ Chrome %s'
    

  • For Linux:

    c.NotebookApp.browser = '/usr/bin/google-chrome %s'
    

• Save the config, restart Jupyter, and it’ll now launch Chrome automatically instead of IE.

内容的提问来源于stack exchange，提问作者Pro