Navigator Error

[ustc-wyj]

Main error

Application notebook launch may have produced errors.

Traceback

[I 21:12:23.348 NotebookApp] Serving notebooks from local directory: C:\Users\John
[I 21:12:23.348 NotebookApp] 0 active kernels 
[I 21:12:23.348 NotebookApp] The Jupyter Notebook is running at: http://localhost:8888/?token=502ef8c0eb239b43d3b9d89a5922b5f77a9d8ceeec6c1a6a
[I 21:12:23.348 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 21:12:23.349 NotebookApp] 
    
    Copy/paste this URL into your browser when you connect for the first time,
    to login with a token:
        http://localhost:8888/?token=502ef8c0eb239b43d3b9d89a5922b5f77a9d8ceeec6c1a6a
[I 21:12:23.562 NotebookApp] Accepting one-time-token-authenticated connection from ::1
[I 21:12:23.563 NotebookApp] Refusing to serve hidden directory, via 404 Error
[W 21:12:23.582 NotebookApp] 404 GET /tree?token=e46654dd4c7aee4db563b6bd7fb4ee78c0ab49f6c12cedb7 (::1) 19.00ms referer=None

System information

platform: win-64
version: 1.6.2
conda: 4.3.21
qt: 5.6.2
language: zh_CN
python: 2.7.13
os: Windows;7;6.1.7601;AMD64;Intel64 Family 6 Model 60 Stepping 3, GenuineIntel
pyqt: 5.6.0

[goanpeca]

See Issue jupyter/notebook#2382 for more information on how to fix this.

---

Please remember to update to the latest version of Navigator to include
the latest fixes.

Open a terminal (on Linux or Mac) or the Anaconda Command Prompt (on windows)
and type:

$ conda update anaconda-navigator

[ustc-wyj]

@goanpeca thank you .I have solved the problem