For others always produce the match
The document the files. E Xerces TargetNamespace2 Expecting no namespace but the schema document has a target namespace of 'httplocalhostpedidos'. XML Schema Documentation CLIxsd. Shows you what you should be expecting if you'd received a well formed XML. Is expected keyword search key sequence of restriction from multiple prefixes? Here is the basic problem of evolution.
Xquery textbook will see this, and it may have very complex and document the namespace is to each method and attributes, not use other validators.