cvc-elt-4-3
Table of contents
| Notice! This page describes the nature of the error using a hypothetical example and not the erroneous data of the input test file. You should however be able to apply this information to your error case. |
General description of the error:
The format of the error message: cvc-elt.4.3: Type ''{1}'' is not validly derived from the type definition, ''{2}'', of element ''{0}''.
Error description in schema standard: http://www.w3.org/TR/2007/WD-xmlschema11-1-20070830/#cvc-elt
Possible causes for this error:
- File has an element with a type that is not extended (derived) from the base datatype.
An example
Schema would be along with:
<xsd:element name="directory">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="contact" type="contactType" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<!-- Defining the base datatype -->
<xsd:complexType name="contactType">
<xsd:sequence>
<xsd:element name="name" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
<!-- Defining a derived datatype -->
<xsd:complexType name="emailContactType">
<xsd:complexContent>
<xsd:extension base="contactType">
<xsd:sequence>
<xsd:element name="email" type="xsd:string"/>
</xsd:sequence>
</xsd:extension>
</xsd:complexContent>
</xsd:complexType>
- Valid file would be:
| <directory xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <contact xsi:type="emailContactType"> <email>email@server.com</email> </contact> </directory> |
In this case the 'webContactType' is not defined as extension of contactType like in the emailContactType in the valid example.
| <directory xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> |
Error message: Error cvc-elt.4.3: Type 'webContactType' is not validly derived from the type definition, 'contactType', of element 'contact'.
How to fix: The error can be corrected by looking up the schema and checking what elements can be used. Usable elements are those that are derived from base datatype with:
| <xsd:extension base="contactType"> |