C:\antjava.lang.InstantiationException: org.apache.tools.ant.Mainat java.lang.Class.newInstance0(Cl
C:\>ant
java.lang.InstantiationException: org.apache.tools.ant.Main
at java.lang.Class.newInstance0(Class.java:325)
at java.lang.Class.newInstance(Class.java:293)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:195)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:55)
出错 怎么解决？？？
------解决方法--------------------------------------------------------
ANT_HOME设置