New comment by tsndqst on void-packages repository

https://github.com/void-linux/void-packages/issues/30926#issuecomment-842811665

Comment:
does the vpcs.log file have anything in it?
There is a GitHub [issue](https://github.com/GNS3/gns3-gui/issues/3110#issuecomment-768105648) with the same error message as you report. It looks like that particular issue was fixed but perhaps there is another case that was not solved by the fix.

Is the vpcs process running

I am having trouble reproducing the issue as my `vpcs` command fails with a segfault.  I'll keep trying but I'm not sure how long it will take to figure out.

Perhaps you can switch from VPCS to ipterm or another end device in the mean time.