Gradle sync failing due to invalid xml character

Please how do I resolve this error log.
Gradle sync failed: Cause: javax.xml.bind.UnmarshalException
- with linked exception:
[org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 460; An invalid XML character (Unicode: 0x0) was found in the element content of the document.]
An invalid XML character (Unicode: 0x0) was found in the element content of the document.