KML Validator Galdos Systems Inc.

Error: XML Schema Constraints


In addition to conforming to the OGC KML 2.2 Specification, a KML file must also conform to the requirements for the XML 1.0 Specification by being well-formed and schema-valid.

Being well-formed means that an XML document follows all the syntax rules defined in the XML specification. A well-formed document has things like an XML declaration, a closing tag for every opening tag, all attributes contained in quotes, and so on.

Being schema-valid means that an XML document follows all the semantic rules as defined in a specific schema or DTD.


Validate the KML file against the KML schema as it is being created by using a text editor that provides error checking as the content is being typed. One tool for doing this is shown in the Validating KML As You Go tutorial.

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