After i config the environment ,i use the commandline as follow:
E:\xmldbms20alpha3\samples>java
org.xmlmiddleware.xmldbms.tools.MapManager File1
=parser.props File2=db.props Input=DTD DTDFile=orders.dtd Output1=Map
MapFile=or
ders.map Output2=SQL SQLFile=orders.sql
then the errors occur as follow:
java.lang.NullPointerException
at
org.xmlmiddleware.xmldbms.tools.MapManager.createMapFromDTD(MapManage
r.java:614)
at
org.xmlmiddleware.xmldbms.tools.MapManager.dispatch(MapManager.java:407)
at
org.xmlmiddleware.xmldbms.tools.MapManager.main(MapManager.java:348)
I can not resolve them by myself.help me please


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