Could any one help me on how to resolve the error, I pasted the error as an XML file below. I am validating the XML file using rules.sch file.

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<?xml version="1.0" encoding="UTF-8"?>

<report xmlns="http://www.oxygenxml.com/ns/report">

<incident>

<engine>ISO Schematron (XSLT 2.0)</engine>

<severity>error</severity>

<description>Failed to compile stylesheet. 4 errors detected.</description>

<systemID>C:\DATA\Rule-based validation\rules.sch</systemID>

<operationDescription>

<mainValidationFile>C:\DATA\sample.xml</mainValidationFile>

</operationDescription>

</incident>

<incident>

<engine>ISO Schematron (XSLT 2.0)</engine>

<severity>fatal</severity>

<description>The filtered expression in an XSLT 2.0 pattern must be a simple step</description>

<systemID>C:\DATA\Rule-based validation\rules.sch</systemID>

<operationDescription>

<mainValidationFile>C:\DATA\sample.xml</mainValidationFile>

</operationDescription>

</incident>

<incident>

<engine>ISO Schematron (XSLT 2.0)</engine>

<severity>fatal</severity>

<description>The filtered expression in an XSLT 2.0 pattern must be a simple step</description>

<systemID>C:\DATA\Rule-based validation\rules.sch</systemID>

<operationDescription>

<mainValidationFile>C:\DATA\sample.xml</mainValidationFile>

</operationDescription>

</incident>

<incident>

<engine>ISO Schematron (XSLT 2.0)</engine>

<severity>fatal</severity>

<description>The filtered expression in an XSLT 2.0 pattern must be a simple step</description>

<systemID>C:\DATA\Rule-based validation\rules.sch</systemID>

<operationDescription>

<mainValidationFile>C:\DATA\sample.xml</mainValidationFile>

</operationDescription>

</incident>

<incident>

<engine>ISO Schematron (XSLT 2.0)</engine>

<severity>fatal</severity>

<description>The filtered expression in an XSLT 2.0 pattern must be a simple step</description>

<systemID>C:\DATA\Rule-based validation\rules.sch</systemID>

<operationDescription>

<mainValidationFile>C:\DATA\sample.xml</mainValidationFile>

</operationDescription>

</incident>

<incident>

<engine>ISO Schematron (XSLT 2.0)</engine>

<severity>fatal</severity>

<description>Got a fatal error trying to create a transformer from the stylesheet!</description>

<systemID>C:\DATA\sample.xml</systemID>

<operationDescription>

<mainValidationFile>C:\DATA\sample.xml</mainValidationFile>

</operationDescription>

</incident>

</report>

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Regards

Anantha