Snapshot unknown or unsupported entry type

During the snapshot process, the file is skipped, what should I do? The log is as follows:

logs:Ignored error when processing “peter/.gnupg/S.gpg-agent”: unknown or unsupported entry type


peter/.gnupg/S.gpg-agent is a socket file which shouldn’t be a subject for backup.
Use .kopiaignore to ignore files that shouldn’t go to backup.
Just add *.gpg-agent into .kopiaignore file and place it in a root of original folder that you snapshoting

I don’t wish to rule out, wish to back up. But I use restic to do the same backup is supported.

sorry,restic not supported

You can NOT backup a pipe (which is a socket), it isn’t persistent operation system object, it used for communications between running processes