Unmet Pre-Condition - User Must Exist to Import
Problem: If, when running a configuration import, you receive an error similar to below:
Unmet pre-condition: User xxxxx must exist
Solution: We can confirm that this indicates the user with the name shown in the error is referenced by the configuration object, which is giving this error inside the configuration import tree.
The error is caused by the fact that the user mentioned in the error does not exist in the target instance and is not included in the export file you are importing from.
To work around this error, you will need to create a user in the target instance with the username mentioned in the error before re-running the import.