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hines wrote: ↑Wed Sep 25, 2024 7:14 am I'd be curious if your problem returns

I reverted gstim.mod to permissions 664, deleted the x86_64 directory, ran nrnivmodl and then nrngui.
The problem did not reappear.
I can't explain it but I can continue with my simulation project :-)

Thanks for the followup! Now I have a question for you: Given the (to me at least) relatively nonspecific and noninformative error messages, what led you to check the mod file permissions? After all, nrnivmodl completed without complaint. I decided to take a step back towards a tutorial "http:...

In an empty directory launch python 3 from the command line. In Python execute from neuron import h If that works, execute soma = h.Section("soma") If something fails, at which step did that happen, and what was the error message? No error occurred. But as mentioned in an addendum, changi...

All but one file has the same permissions so I used "chmod 750 gstim.mod" instead of 664 to match the others with 750. I deleted the directory x86_64 and ran nrnivmodl again which completed successfully again. Then I ran nrngui and it worked perfectly. The only change made was to the file ...

On ubuntu jammy, I installed neuron using: sudo apt install python3-pip sudo pip3 install neuron I ran nrgui and it worked. Then I ran nrnivmodl to compile modules and it completed successfully. Then I ran again nrngui and got the following error: Traceback (most recent call last): File "/home/...