trace: Str("Attribute named 'optionD' does not match any option declaration.",[]) <?xml version='1.0' encoding='utf-8'?> <expr> <attrs> <attr name="optionA"> <bool value="true" /> </attr> <attr name="optionB"> <bool value="true" /> </attr> <attr name="optionC"> <bool value="false" /> </attr> <attr name="optionD"> <list> <bool value="false" /> </list> </attr> </attrs> </expr>