Unalbe to parse document

Hello Experts,

Recently we upgraded from SAp Business Connector 4.7 to BC 4.8 and on testing a scenario getting the below error -

"Unable to parse document.

0000E8  [B2BUNKW.XML.0003] <exception message="Error parsing document. reasons include:

org.xml.sax.SAXParseException: schema_reference.4: Failed to read schema document &#39;XCBL35.xsd&#39;, because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not &lt;xsd:schema&gt;.,

org.xml.s

Unable to parse document.

0000E8  [B2BUNKW.XML.0003] <exception message="Error parsing document. reasons include:

org.xml.sax.SAXParseException: schema_reference.4: Failed to read schema document &#39;XCBL35.xsd&#39;, because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not &lt;xsd:schema&gt;.,

org.x

And there is XML Schema defiend in BC developer as well.

Please help me. Its quite urgent!!!!

Regards,

Narayanareddy B