BODS XML Parser Failed

I am getting the below error when I try to use an XML file.

XML parser failed: See previously displayed error message.

I am using BODS 4.1.I created an XSD schema, and added an XML file to it. when I try to view the data rows, it gives me the above error.

I used external XML parser to parse the xml file and it was validating without any error.

Can someone please help me?