Error in Build file

Question

Hi All,
I have a simple build file which i am using Ant build in Eclipse to give build to.
<project name="bobf" default="compile" basedir=".">
     <property name="build.home"    value="${basedir}"/>
     <target name="compile" >
          <mkdir  dir="${build.home}\bin"/>
     <javac srcdir="${build.home}"
          destdir="${build.home}\bin" >
          <classpath path="${build.home}\lib"/> 
    </javac>
     </target>
</project>i am getting this error while running it in the eclipse
C:\Saurav\bobf\build.xml:14: Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK
I have put the tools.jar in the ant buil's edit under classpath under user entries.
Please help

Answer 1

thanks both for the reply.
I installed Ant
here i am getting the new error
C:\Saurav\bobf>ant build.xml
Buildfile: build.xml
BUILD FAILED
java.lang.NoClassDefFoundError: javax/xml/parsers/FactoryConfigurationError
        at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:
193)
        at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:
140)
        at org.apache.tools.ant.ProjectHelper.configureProject(ProjectHelper.jav
a:91)
        at org.apache.tools.ant.Main.runBuild(Main.java:653)
        at org.apache.tools.ant.Main.startAnt(Main.java:187)
        at org.apache.tools.ant.Main.start(Main.java:150)
        at org.apache.tools.ant.Main.main(Main.java:240)
Total time: 0 seconds
java.lang.NoClassDefFoundError: javax/xml/parsers/FactoryConfigurationError
        at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:
193)
        at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:
140)
        at org.apache.tools.ant.ProjectHelper.configureProject(ProjectHelper.jav
a:91)
        at org.apache.tools.ant.Main.runBuild(Main.java:653)
        at org.apache.tools.ant.Main.startAnt(Main.java:187)
        at org.apache.tools.ant.Main.start(Main.java:150)
        at org.apache.tools.ant.Main.main(Main.java:240)
javax/xml/parsers/FactoryConfigurationErrori have put the Ant library files in the classpath.
Please help