The end of a declaration has been encountered before the declaration has been completed. Either the delimiter that ends the declaration (MDC) was encountered when something else was expected, or the ending delimiter was missing and another declaration was encountered.

#0027   Markup Warning

ISO 8879, 10.1.1

The end of a declaration has been encountered before the declaration has been completed. Either the delimiter that ends the declaration (MDC) was encountered when something else was expected, or the ending delimiter was missing and another declaration was encountered.