XSD元素类型不会以匹配的结束标签终止

Question

I'm receiving an error message for the XSD code - "The element type "element" must be terminated by the matching end-tag /element"..This shows on line /all.. This is only happening to one element type and not the others which I don't understand

 <?xml version = "1.0"?> <schema xmlns:xsd = "http://wwww.w3.org/2001/XMLSCHEMA" xmlns:nutrition = "http://wwww.grandmascookies.com/nutrition" targetNamespace = "http://www.grandmascookies.com/nutrition"> <simpleType name = "amount"> <restriction base = "int"/> </simpleType> <simpleType name = "unit"> <restriction base = "string"/> </simpleType> <complexType name = "nutritionFact"> <all> <element name = "amount" type = "nutrition:amount"/> <element name = "unit" type = "nutrition:unit"/> </all> </complexType> <complexType name = "productType"> <all> <element name = "product" type = "string"> <element name = "servingsize" type = "nutrition:nutritionFact"/> <element name = "calories" type = "nutrition:nutritionFact"/> <element name = "caloriesFat" type = "nutrition:nutritionFact"/> <element name = "gramsFat" type = "nutrition:nutritionFact"/> <element name = "saturatedFat" type = "nutrition:nutritionFact"/> <element name = "mgCholestral" type = "nutrition:nutritionFact"/> <element name = "mgSodium" type = "nutrition:nutritionFact"/> <element name = "totalCarbs" type = "nutrition:nutritionFact"/> <element name = "fiber" type = "nutrition:nutritionFact"/> <element name = "sugar" type = "nutrition:nutritionFact"/> <element name = "protein" type = "nutrition:nutritionFact"/> </all> </complexType> <xsd:complexType name = "productType1"> <xsd:all> <xsd:element name = "item" type = "nutrition:productType"/> <xsd:element name = "items" type = "nutrition:productType1"/> </xsd:all> </xsd:complexType> </schema> 

Answer 1

Change

<element name = "product" type = "string"> 

to

<element name = "product" type = "string"/>
                                         ^

to eliminate the error.

The reason the error is reported upon closure of all is that until that point, it's still possible for the unclosed element to be closed such that the XML could be well-formed. Once the all is closed, however, it's clear that well-formedness is impossible.