developing web application using codecharge software , getting error while publishing

Hi experts , I am trying to use codecharge for development jsp system , but before I start I just tried to open simple page and lunch it , to see everything is fine
I read tutorials about the codecharge but it is still not clear actually in jsp part.

I got this error

BUILD FAILED

java.lang.NullPointerException

at org.apache.tools.ant.Location.<init>(Location.java:73)

at org.apache.tools.ant.helper.ProjectHelper2$ProjectHandler.onStartElement(ProjectHelper2.java:729)

at org.apache.tools.ant.helper.ProjectHelper2$RootHandler.startElement(ProjectHelper2.java:600)

at org.allcolor.xml.parser.CShaniSaxParser.parseStartTag(CShaniSaxParser.java:1393)

at org.allcolor.xml.parser.CXmlParser.parseSTARTTag(CXmlParser.java:1405)

at org.allcolor.xml.parser.CXmlParser.parse(CXmlParser.java:948)

at org.allcolor.xml.parser.CShaniSaxParser.parse(CShaniSaxParser.java:767)

at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:307)

at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:178)

at org.apache.tools.ant.ProjectHelper.configureProject(ProjectHelper.java:82)

at org.apache.tools.ant.Main.runBuild(Main.java:795)

at org.apache.tools.ant.Main.startAnt(Main.java:217)

at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)

at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)

Error:Error during page publishing

I set the classpath to all jars I am using
I set path to jdk directory
I set the ant to ant directory

please help me guys with this , does it mean I set ant to wrong directory , and if I remove it , it will ask me for ant again

thanks