No element mapping definition found for fox:destination

I'm using DocBook XML v. 4.5, docbook-xsl.1.76.1, and FOP 0.93 and got the following error: "No element mapping definition found for fox:destination."

 

Not sure why I'm getting this error since I've set the following parameters my custom stylesheet:

 

        <xsl:param name="fop1.extensions">1</xsl:param> 
<!-- 0 = False, non-zero=True -->

        <xsl:param name="fop.extensions">0</xsl:param>  
<!-- 0 = False, non-zero=True -->

 

Any help would be appreciated.

 

(Everything worked fine in docbook-xsl.1.73.2.)

 

Regards,

Jeff