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LPX-00011:

In line ~1u of ~2s [general entity ~3S]:
Cause: Error message prefixes, not errors themselves. These are the possible banner messages which appear before an XML error to describe the position (line#) and source (buffer or URI) in which the error occurred, as well as the entity's name (if the source is an entity). Parameter entity banner must be at +1 to non-entity banner, general entity at +2 (see lpxerr.c).
Action: No action required. This is not an error message.