INSTALLATION: no Qt platform plugin

[janinaf]

Describe the issue:

Hi,

I went through the installation with absolutely no problem, but then I got this error message when I tried to run Kilosort

QObject::moveToThread: Current thread (0x1f029354620) is not the object's thread (0x1f0293558e0).
Cannot move to target thread (0x1f029354620)

qt.qpa.plugin: Could not load the Qt platform plugin "windows" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: minimal, offscreen, webgl, windows.

Thanks in advance for help

Provide environment info:

 active environment : kilosort4
active env location : C:\Users\Janina\.conda\envs\kilosort4
        shell level : 2
   user config file : C:\Users\Janina\.condarc

populated config files : C:\Users\Janina.condarc
conda version : 23.7.4
conda-build version : 3.26.1
python version : 3.11.5.final.0
virtual packages : __archspec=1=x86_64
__cuda=12.3=0
__win=0=0
base environment : C:\ProgramData\anaconda3 (read only)
conda av data dir : C:\ProgramData\anaconda3\etc\conda
conda av metadata url : None
channel URLs : https://repo.anaconda.com/pkgs/main/win-64
https://repo.anaconda.com/pkgs/main/noarch
https://repo.anaconda.com/pkgs/r/win-64
https://repo.anaconda.com/pkgs/r/noarch
https://repo.anaconda.com/pkgs/msys2/win-64
https://repo.anaconda.com/pkgs/msys2/noarch
package cache : C:\ProgramData\anaconda3\pkgs
C:\Users\Janina.conda\pkgs
C:\Users\Janina\AppData\Local\conda\conda\pkgs
envs directories : C:\Users\Janina.conda\envs
C:\ProgramData\anaconda3\envs
C:\Users\Janina\AppData\Local\conda\conda\envs
platform : win-64
user-agent : conda/23.7.4 requests/2.31.0 CPython/3.11.5 Windows/10 Windows/10.0.22631 aau/0.4.2 c/ez6ZKYPLG2bN4asxZTNF1Q s/ZcEWvDTD8E1L0f7ZS8OBVQ e/uRtKNJZVJmnv7B985iDwCA
administrator : False
netrc file : None
offline mode : False

Operating system information:

Edition Windows 11 Pro
Version 23H2
Installed on ‎9/‎21/‎2022
OS build 22631.3155
Experience Windows Feature Experience Pack 1000.22684.1000.0

[jacobpennington]

Hello,

So far I have not been able to reproduce this issue. However, this looks related: https://stackoverflow.com/questions/76241352/how-to-resolve-no-qt-platform-plugin-could-be-initialized-for-a-qt5-applicatio

Are you attempting to launch Kilosort from the terminal of an IDE? If so, could you try launching from a standalone powershell terminal instead? Or try the solutions mentioned in that stackoverflow post.

[janinaf]

HI Jacob, thanks for suggestions, I will try. I didn't have time to look very deeply into this, but if I manage to solve it, I'll certainly post.

…

On Fri, Mar 1, 2024 at 10:32 AM Jacob Pennington ***@***.***> wrote: Hello, So far I have not been able to reproduce this issue. However, this looks related: https://stackoverflow.com/questions/76241352/how-to-resolve-no-qt-platform-plugin-could-be-initialized-for-a-qt5-applicatio Are you attempting to launch Kilosort from the terminal of an IDE? If so, could you try launching from a standalone powershell terminal instead? Or try the solutions mentioned in that stackoverflow post. — Reply to this email directly, view it on GitHub <#597 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AD63IBDMWAV7UP4DGIAVCKLYWDCTHAVCNFSM6AAAAABEBAI5ZGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSNZTG4ZDCNBQHE> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[thugeun]

Hello, I also had the same error, which seems to be resolved (for now?). Here's what I did:

1. First, I followed steps 1 to 5 from the link in Jacob's suggestion, but it didn't work.
2. I didn't have the variable "QT_PLUGIN_PATH," so I initially thought step 6 wasn't for my case. However, I found this post: https://stackoverflow.com/questions/41994485/how-to-fix-could-not-find-or-load-the-qt-platform-plugin-windows-while-using-m. I created a new variable named "QT_PLUGIN_PATH" with the value "C:\ProgramData\Anaconda3\Library\plugins".

Now GUI appears without any errors.

[thugeun]

....And now, I am having the same "qt.qpa.plugin: Could not load the Qt platform" error when I try to run phy.

This can be fixed by undoing the 2nd step of my comment above and then, as you may expected, running kilosort 4 raises the same error (Phy and Kilosort4 are installed on two different environments.)

[jacobpennington]

Closing this as a pycharm & pyqt issue. If there ends up being something specific to Kilosort we can re-open it, otherwise I recommend trying the steps mentioned above or launching from a standalone terminal.