Spyder: Spyder 4.11 crashes before opening

[mmusci]

Issue Report Checklist

• [x] Searched the issues page for similar reports
• [x] Read the relevant sections of the Spyder Troubleshooting Guide and followed its advice
• [x] Reproduced the issue after updating with conda update spyder (or pip, if not using Anaconda)
• [ ] Could not reproduce inside jupyter qtconsole (if console-related)
• [x] Tried basic troubleshooting (if a bug/error)
  
  
  
  • [x] Restarted Spyder
  
  
  • [x] Reset preferences with spyder --reset
  
  
  • [x] Reinstalled the latest version of Anaconda
  
  
  • [x] Tried the other applicable steps from the Troubleshooting Guide
  
  
• [x] Completed the Problem Description, Steps to Reproduce and Version sections below

Problem Description

What steps reproduce the problem?

1. 
   
   
   2.
   
3.

What is the expected output? What do you see instead?

Paste Traceback/Error Below (if applicable)

PASTE TRACEBACK HERE

Versions

• Spyder version:
• Python version:
• Qt version:
• PyQt version:
• Operating System name/version:

Dependencies

PASTE DEPENDENCIES HERE

[mmusci]

What steps will reproduce the problem?**
1 - Open Anaconda Navigator
2 -Launch Spyder 4.11
3 Spyder open and closes after a few seconds

What is the expected output? What do you see instead?**
Expected Spyder to open but it crashes instead.

Please provide any additional information below**
I have tried re-installing many times, update with conda update --all, but neither spyder 4.1 and spyder 4.11 starts, only version 4.01 works

Message from anaconda:
Traceback (most recent call last):
File "d:\Users\mmusc\anaconda3\Scripts\spyder-script.py", line 10, in
sys.exit(main())
File "d:\Users\mmusc\anaconda3\lib\site-packages\spyder\app\start.py", line 205, in main
mainwindow.main()
File "d:\Users\mmusc\anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 3700, in main
mainwindow = run_spyder(app, options, args)
File "d:\Users\mmusc\anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 3556, in run_spyder
main.setup()
File "d:\Users\mmusc\anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 1217, in setup
self.apply_shortcuts()
File "d:\Users\mmusc\anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 3207, in apply_shortcuts
self.help.show_intro_message()
File "d:\Users\mmusc\anaconda3\lib\site-packages\spyder\plugins\help\plugin.py", line 456, in show_intro_message
shortcut_editor, "\n\n", prefs)
TypeError: not enough arguments for format string

Operating system: Windows 10

[ccordoba12]

Please the Anaconda Prompt and run there

spyder --reset

That should fix your problem.

[mmusci]

Thank you