Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 

    from copr_common.helpers import (
E   ImportError: cannot import name 'USER_SSH_DEFAULT_EXPIRATION' from 'copr_common.helpers' (/usr/lib/python3.11/site-packages/copr_common/helpers.py
Python can not import the USER_SSH_DEFAULT_EXPIRATION symbol from 'copr_common.helpers' file. This means that the symbol doesn't exist there.