what means "The matching wildcard is strict"

Question

Validating the XML against the Controlling Documents ERROR: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'adlcp:datafromlms'. line: 21, col: 24

here is error line in my xml file:

< adlcp:datafromlms>course=e7.txt;lesson=1< /adlcp:datafromlms>

this is from XSD:

  <xs:element name = "dataFromLMS" type = "dataFromLMSType"/>
  < xs:simpleType name = "dataFromLMSType">
     <xs:restriction base = "xs:string"/>
  < /xs:simpleType>

Answer 1

Oh, it should be dataFromLMS OF COURSE

closing..