No PUBLIC identifier declared for external entity.
#6030 Run-time catchable error
No PUBLIC identifier declared for external entity.
Additional Information
For element 'X' : For element attribute 'Y' = entity "Z":
where Z is the name of the attribute's external entity.
or
For external entity 'X'.
where X is the name of the external entity.
Explanation
The external entity does not have a specified public identifier.