error in running VA network with PyNN

[Alberto Arturo Vergani]

Dear Spinnaker Users Group,

I noticed errors in running the VA network on Ebrains JupyterLab Interface with  ebrains25.02 kernel.

I am attaching the errorLog and the notebook I run is in this repo. 

Important: this error came from students that made the Ebrains credential recentenly, which also have different kernels than mine (eg from my JupyterLab I can select Python3 and SpiNNaker 7.4.1 and with the latter I dont receive errorrs, while them have ebrains25.02 kernels relating with the error).

Thanks in advance for any suggestions,
Best
Alberto

[Andrew Rowley]

Hi,

Thanks for the report.  This is something I thought was resolved, however the workaround is at least simple: please add a spynnaker.cfg (note, no dot prefix) file into the folder where the scripts are with the content:

[Java]

use_java = False

This should then fix the problem.

Let me know if it still happens though!

Andrew 🙂

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From: spinnak...@googlegroups.com <spinnak...@googlegroups.com> on behalf of Alberto Arturo Vergani <verga...@gmail.com>
Sent: 16 December 2025 08:53
To: SpiNNaker Users Group <spinnak...@googlegroups.com>
Subject: [SpiNNaker Mailing List] error in running VA network with PyNN

 

Dear Spinnaker Users Group, I noticed errors in running the VA network on Ebrains JupyterLab Interface with  ebrains25. 02 kernel. I am attaching the errorLog and the notebook I run is in this [github. com]repo.   Important: this error came from

Dear Spinnaker Users Group,

I noticed errors in running the VA network on Ebrains JupyterLab Interface with  ebrains25.02 kernel.

I am attaching the errorLog and the notebook I run is in this [github.com]repo. 

Important: this error came from students that made the Ebrains credential recentenly, which also have different kernels than mine (eg from my JupyterLab I can select Python3 and SpiNNaker 7.4.1 and with the latter I dont receive errorrs, while them have ebrains25.02 kernels relating with the error).

Thanks in advance for any suggestions,
Best
Alberto

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