Spyder 6 on Windows cannot load Spyder's icon theme --> no start

[ITanatFR]

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

• [ ] Reproduced the issue after updating with conda update spyder (or pip, if not using Anaconda) no conda installed, python anstead but restart reproduces it, with or without adminrights

• [ ] Could not reproduce inside jupyter qtconsole (if console-related)

• [ ] Tried basic troubleshooting (if a bug/error)

  • [ x] Restarted Spyder
  • [ ] Reset preferences with spyder --reset
  • [ ] Reinstalled the latest version of Anaconda
  • [ ] Tried the other applicable steps from the Troubleshooting Guide

• [ ] Completed the Problem Description, Steps to Reproduce and Version sections below

Problem Description

installed spyder on Win10 (as domain PC with SRP). to avoid conflicts installation in c:\prg-win, not on c:\programdata [where software shouldn#T be installed anyway] after start there appears the spyger 6 logo, and thereafter teh error meassage: "It was not possible to load Spyder's icon theme, so Spyder cannot start on your system. The most probable causes for this are either that you are using a Windows version earlier than Windows 10 1803/Windows Server 2019, which is no longer supported by Spyder or Microsoft, or your system administrator has disabled font installation for non-admin users. Please upgrade Windows or ask your system administrator for help to allow Spyder to start."

Click on OK stops the program, no choices to do enything on it.

What steps reproduce the problem?

1. uninstall - re-install; download a fresh version, all the same

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

expected: software would start I see the error mesage (see above)

Paste Traceback/Error Below (if applicable)

PASTE TRACEBACK HERE

Versions

• Spyder version: 6
• Python version: 3.1.2
• Qt version: ?
• PyQt version: ?
• Operating System name/version: Windows 10 21H2

Dependencies

PASTE DEPENDENCIES HERE

Any ideas what could cause this issue, and how to get that solved ?

Thanks and Best Albrecht

[ITanatFR]

correction due to typo: python version is 3.12.6

[ccordoba12]

Hey @ITanatFR, thanks for reporting. As the message you copy/pasted here clearly says, this is a problem you need to solve on your side.

In this case it seems fonts installation for users is disabled or blocked by your IT department. So, you need to talk to them and ask them to enable it.

Let us know if that's helpful.

[nsgates]

I have the same issue with Spyder 6. Can you tell me which font(s) need(s) to be installed? I was able to install spyder.ttf, but this does not appear to solve the issue.

I know that previous versions of Spyder depended on Font Awesome, etc. Have these dependencies been removed?

[ccordoba12]

@nsgates, the fonts required by Spyder should be installed automatically, unless you're using an old Windows version or your system doesn't allow to install fonts for users (as the message says).

Please check those conditions don't apply for you and try again.

[nsgates]

@ccordoba12, I appreciate your help. I am not on an old Windows version, and I would certainly enable the automatic font installs if I could.

Can you tell me which fonts are required to load Spyder 6's icon theme? I can install fonts manually, but the automatic install is being blocked. Apparently, Spyder 6 needs more than just spyder.ttf, which I believe I was able to install:

Spyder 5 would fall back to the Spyder 2 icon theme when it was unable to load the Spyder 3 icon them (e.g., when Font Awesome was blocked because it was not marked trusted by Windows, https://github.com/spyder-ide/qtawesome/issues/167), which was very helpful.

My attempts to trace the error above triggered in spyder/app/mainwindow.py have not been successful in revealing which specific fonts are missing. How can I find out which ones these are?