We are attempting a CiviCRM Member import for a client on CiviCRM 4.6.12. The import starts to run but then fails saying no memberships were created.
- Nothing is logged to the CiviCRM log file.
- The .csv file detailing the import errors says for ecah line 'DB Constraint Violation - possibly membership_type_id should possibly be marked as mandatory for this API. If so, please raise a bug report'
The client says there have been no reported upgrade errors and each member record in the Db has a valid membership type ID.
Has anyone had a similar issue?