The base entry 'base_entry' cannot be added to the
repository_id repository because it is already defined in this or another repository.
Explanation
The base entry already exists in this or another repository, and therefore cannot be added to the repository.
Programmer response
Create the base entry with a different name so it does not match another base entry, or
delete the base entry with the specified name from its corresponding repository
and then add the base entry to the repository.